GUJARAT TECHNOLOGICAL UNIVERSITY - mytoolbag.inmytoolbag.in/media/GTUPAPERS/1/2/CHEMICAL/S3/OCUP.pdf · Ma nufacture Process of Acetic acid, Formic acid, Oxalic acid, Palmitic acid

GUJARAT TECHNOLOGICAL UNIVERSITY

CHEMICAL ENGINEERING

ORGANIC CHEMISTRY AND UNIT PROCESSES

SUBJECT CODE: 2130501

B.E. Semester: III

Type of course: Chemical Engineering.

Prerequisite: Students having background of chemistry at higher secondary level.

Rationale: It is the basic subject for Chemical Engineering Students.

Teaching and Examination Scheme:

Teaching Scheme Credits Examination Marks Total

Marks L T P C Theory Marks Practical Marks

ESE

(E)

PA (M) PA (V) PA

(I) PA ALA ESE OEP

3 0 2 5 70 20 10 20 10 20 150

Content:

Sr.

No. Topics

Teaching

Hrs.

Module

Weightage

1

General Principles of Organic reactions and Mechanisms:

Fission Reaction and reaction intermediates:

Free Radical, Carbonium, Carbanion, Carbenes and Nitrenes.

Nucleophilles and Electrophilles.

Types of Organic reactions and its mechanism: Especially

Nucleophillic and Electrophillic Addition and Substitution

reactions.

6

60 %

2

Stereochemistry:

Optical, Geometrical and Conformational Isomerism:

Optical activity, Polarimeter, Specific rotation, Enantiomers,

Diasteromers, Optical activity in Lactic and Tartaric acid, R and

S configuration of Optically active compound and E and Z

designation of Geometrical isomers. Resolution of racemic

mixture.

4

3

Introduction to various Unit Processes and Operations:

Nitration, Amination, Hydrogenation, Halogenations, Oxidation,

Reduction, Sulphonation, Hydrolysis, Alkylation and

Polymerization.

6

4

Carboxylic acid : Introduction, Preparation and Properties

Manufacture Process of Acetic acid, Formic acid, Oxalic acid,

Palmitic acid & Stearic acid

Derivatives of Carboxylic acids: Acid Amides, Esters, Acid

Anhydrides and Acid Chlorides.

Mechanism of Esterification and Strengths of Acids.

4

5 Polynuclear and Heterocyclic Compounds: 4

Introduction and Classification.

Preparation, Properties and Uses of:

Naphthalene, Anthracene, Pyrrole, Furan, Thiophene, Pyridine

and Quinoline

6

Application of following reactions with Mechanism:

Diazotisation, Sandmeyer, Canninzaro, Wolf Kishner, Clasien,

Curtius, Baeyer Villiger, Hoffman and Michael Dieckmann

reaction.

5

7

Carbohydrates:

Introduction, Classification, Configuration and Chemical

reactions of mono, oligo and poly saccharides, especially of

Glucose, Fructose and Starch.

Conversion of higher to lower and lower to higher aldose

(Killiani Synthesis, Ruff & Wohl’s Degradation). Conversion of

Aldose to Ketose.Manufacturing of Cane Sugar from Sugarcane

with flow sheet.

4

40%

8

Amino acid &Protein Chemistry:

Introduction, Composition, Classification & Isolation of

Proteins, Qualitative tests of Proteins, Classification of Amino

acids & their synthesis. Amphoteric nature, Isoelectric point,

Primary, Secondary, Tertiary and Quartanery Structure of

Protein, RNA and DNA.

4

9

Synthetic Drugs:

Synthesis of drugs, Antiseptics, Halogenated compounds,

Antimalarials, Quinoline derivatives, Antibacterials, Sulpha

Aspirin, Phenacetin, Paracetamol, Sulphanilamide,

Sulphaguanidine, Chloromycetin, Chloroquine.

6

10

Colour, Dyes and Pigments:

Introduction, Classification of dyes based on Application and

Structural representation.Colour and Constitution Theory:

Quinonoid, Valence bond and Molecular Orbital theory

Application of Dyes and Pigments.Preparation of some imp

derivatives: Congo red, Malachite Green, Crystal Violet,

Alizarin, Phenolphthalein, Fluorescein, Eosin and Indigo .

5

11

Petroleum Chemistry:

Occurrence- Composition of Crude oil- Distillation of the Crude

oil, Cracking, Knocking, Octane number & Cetane number,

Synthetic petrol.

6

Reference Books:

Sr.

No.

Title/Author/Publisher

1. A Text Book Of Organic Chemistry

by P. L. Soni, Sultan Chand & Sons, New Delhi.

2. A Text Book of Organic Chemistry

by Arun Bahl and B.S. Bahl, Sultan Chand & Sons, New Delhi

3. A Textbook of Organic Chemistry

by Raj K Bansal, New Age International, New Delhi

4. Organic Chemistry

By Solomons, John Willey & Sons, USA.

5. Organic Chemistry,

I. L. Finar Vol. I & II ELBS & Longmans, Green – UK


By Morrison and Boyd, Pearson Education, Singapore.

7. A Textbook of Organic Chemistry

By Francis A Carey, Springer –USA

8. Organic Reaction and their Mechanisms

By P S Kalsi, New Age International, New Delhi

9. Atomic Structure and the Chemical Bond

By Manas Chanda, Tata Mcgrawhill

10. Heterocyclic Chemistry

By Bansal B K, New Age International, New Delhi


By R L Madan, S. Chand & Company, New Delhi

12. Laboratory Techniques in Organic Chemistry

By Ahluwalia V K, I K International, New Delhi

13. Unit Process in Organic Synthesis

By P H Groggins, Tata Mc Graw Hill, New Delhi.

14. Vogel’s textbook of Qualitative Organic Analysis,

By Arthur I Vogel, Revised by Jefferey et al. Publisher: Addison Wessley Longmann Ltd,

England

Course Outcome:

After learning the course the students should be able:

1. To build a basic knowledge of the Fundamental structure of Organic molecules.

2. To analyze scientific concepts and think critically.

3. To understand and explain the reactions in Organic molecules.

4. To correlate the same as per their utility in field of Chemical Engineering.

List of Experiments and Open Ended Projects: Minimum 5 practicals to be performed and remaining Open-ended Projects / Study Reports / Latest

outcomes in technology study :-

1. In the beginning of the academic term, faculties will have to allot their students at least one Open-

ended Projects / Study Reports / Latest outcomes in technology.

2. Literature survey including patents and research papers of basic chemistry

- Design based small project or

- Study report based on latest scientific development or

- Technology study report/ modeling/ simulation/collection report or

- Computer based simulation/ web based application/ analysis presentations of applied science field

which may help them in chemical engineering fields .

3. These can be done in a group containing maximum Three students in each.

4. Faculties should cultivate problem based project to enhance the basic mental and technical level of

students.

5. Evaluation should be done on approach of the student on his/her efforts (not on completion) to

study the design module of given task.

6. In the semester student should perform minimum 5 set of experiments and complete one small

open ended dedicated project based on engineering applications. This project along with any

performed experiment should be EVALUATED BY EXTERNAL EXAMINER.

LIST OF PRACTICALS: (Minimum 5 out of any three set to be performed.)

(I) Qualitative analysis of different Organic molecules :

1 ACIDS : Benzoic, Salicylic, Cinnamic, Sulphanilic, Anthranilic

2 PHENOLS : alpha-Naphthol, beta-Naphthol, Resorcinol

3 BASES : Aniline, o-m and p-Nitro aniline, p-Toluidine, Diphenylamine

4 ALDEHYDES

KETONES

ESTERS

:

:

:

Benzaldehyde

Acetone, Methyl ethyl ketone

Methyl acetate, Ethyl acetate

5 ALCOHOLS : Ethyl alcohol, Methyl alcohol

6 HYDROCARBONS : Benzene, Toluene

7 CARBOHYDRATES : Glucose, Fructose

8 AMIDES : Urea, Benzamide

9 ANILIDES : Acetanilide

10 HALOGENATED

COMPOUNDS

: Chlorobenzene, Bromobenzene

(II) Organic Estimation by volumetric method of any two of the following :

1. Estimation of Phenol by Bromination.

2. Glucose by Hypoiodite method.

(III) Organic preparations of any two of the following :

1. Acetanilide from aniline.

2. Tribromophenol from Phenol.

3. m-dinitrobenzene from Nitrobenzene.

4. Anthraquinone from Anthracene.

5. Phthalic anhydride from Phthalic acid.

Open Ended Project fields:-

Students are free to select any area of organic chemistry and unit process based to define project.

Some suggested projects are listed below:

Detailed study of any unit process like nitration,halogenations,etc.

Product profile and its manufacturing product any organic compound in detail.

Major Equipments:

Magnetic Stirrer, Hot plates.

Laboratory Oven.

Melting Point Instrument,etc.

List Of Open Source Software/Learning Website:

Students can refer various video lectures available on NPTL, refer soft copies (CD) provided with

reference books/text books , etc.

ACTIVE LEARNING ASSIGNMENTS: Preparation of power-point slides, which include videos,

animations, pictures, graphics for better understanding theory and practical work – The faculty will

allocate chapters/ parts of chapters to groups of students so that the entire syllabus to be covered. The

power-point slides should be put up on the web-site of the College/ Institute, along with the names of

the students of the group, the name of the faculty, Department and College on the first slide. The best

three works should submit to GTU.

1

Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY BE - SEMESTER–III (NEW) - EXAMINATION – SUMMER 2017

Subject Code: 2130501 Date: 13/06/2017 Subject Name: Organic Chemistry and Unit Processes Time: 10:30 AM to 01:00 PM Total Marks: 70 Instructions:

1. Attempt all questions. 2. Make suitable assumptions wherever necessary. 3. Figures to the right indicate full marks.

Q.1 Short Questions 14

1 Define the following terms: (a)Carbene (b)Free Radical

2 Write the derivatives of carboxylic acid.

3 Explain the terms Heterocyclic compound and polynuclear

compound.

compounds.

4 Draw the structure of RNA and DNA.

5 Glucose on reaction with ammonical silver nitrate gives_________.

_____________.

6 Draw the structure of Methyl orange.

7 What are drugs?

8 Define the terms one step and two step reactions.

9 Define the terms octane number and Cetane numbers.

10 What is optical activity?

11 State Nitrating and Sulphonating agents.

12 Distinguish between unit process and unit operation.

13 Give two points of difference between Electrophile and Nucleophle.

Nucleophile.

14 Write the applications of Sandmeyer and Wolf Kishner reactions.

Q.2 (a) Classify Dyes based on: (i) mode of application and (ii)structural

representation. 03

(b) Explain Diazotization reaction with its mechanism. Write its

application also. 04

(c) How will you manufacture cane sugar from sugar cane explain in

detail with flow sheet diagram. 07

OR

(c) Discuss the fractional distillation of crude oil and state the various

important fractions and their uses 07

Q.3 (a) How you will convert phenol into salicylic acid. 03

(b) Give the Haworth preparation of Naphthalene. 04

(c) Write in brief about: Preparation, properties and uses of Pyrrrole. 07

OR

Q.3 (a) Explain Isoelectric point and Zwitterion of Amino acid. 03

(b) How will you carry out following conversions:

(i) Glucose to Fructose (ii) Fructose to Glucose 04

(c) How will you synthesize: Asprin and Paracetamol. 07

Q.4 (a) Write in brief about Walden Inversion. 03

(b) Write in brief about the following terms :

(i)Antipyretics (ii)Analgsics(iii)Tranquillizers (iv)Antimalarials. 04

2

(c) How amino acids can be synthesized from the following:

(1)From acids (2)Strecker Synthesis (3)Gabriel phthalimide

synthesis (4)Koop’s synthesis.

07

OR

Q.4 (a) Explain how Anthracene can be isolated from Anthracene oil. 03

(b) Explain in detail about Isomerism in Tartaric acid. 04

(c) Write different manufacturing processes of Acetic acid. 07

Q.5 (a) Explain different qualitative test of protein. 03

(b) Explain preparation of “Synthetic Petrol” by Bergius method. 04

(c) Write in Detail about Electrophilic reactions of Anthracene. 07

OR

Q.5 (a) Write in brief about cracking. 03

(b) What is Polarimeter? Give its construction and application

pertaining to chemical industry.

(draw neat and labeled diagram also)

04

(c) Explain different theories of colour concept. 07

*************

1


GUJARAT TECHNOLOGICAL UNIVERSITY BE - SEMESTER–III(New) • EXAMINATION – WINTER 2016

Subject Code:2130501 Date:11/01/2017

Subject Name:Organic Chemistry and Unit Processes

Time: 10:30 AM to 01:00 PM Total Marks: 70 Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.


1 What do you understand by electrophile?

2 Define enantiomers.

3 Differentiate between drug and disinfectant.

4 State two sulfonating agents.

5 Explain acidity constant (Ka).

6 State two applications of stearic acid.

7 Which compounds are called heterocyclic compounds?

8 Define isoelectric point.

9 What do you understand by amphoteric nature?

10 What are antibiotics?

11 What is cracking?

12 Define octane number.

13 Differentiate between chromophore and auxochrome.

14 State two antibacterial drugs.

Q.2 (a) Explain the synthesis of toluene from benzene by alkylation reaction

using Friedel - Craft’s catalyst. 03

(b) Stating the necessary conditions for a compound to show optical

isomerism, explain optical isomerism in lactic acid. 04

(c) What do you understand by reaction intermediate? State and discuss

about any three reaction intermediates. 07

OR

(c) What do you understand by SN1 reaction and SN

2 reaction? Discuss about

each with suitable examples. 07

Q.3 (a) Briefly discuss the effect of substituents on the acidity of

monocarboxylic acids. 03

(b) Describe R, S notations used in fixing the positions of groups in an

optically active compound with an example. 04

(c) What is vinegar? How is acetic acid produced by quick vinegar process?

State the applications of acetic acid. 07

OR

Q.3 (a) With reactions, explain the preparation of any two derivatives of

carboxylic acids. 03

(b) Briefly discuss the preparation and uses of naphthalene. 04

(c) With mechanism, explain the applications of the following reactions.

(i) Diazotisation reaction; (ii)Sandmeyer reaction. 07

Q.4 (a) Explain how you will convert an aldopentose into aldohexose. 03

(b) With a neat diagram of Schmid nitrating reactor, describe the nitration of

benzene. 04

(c) With a neat diagram, describe the manufacturing of cane sugar from

sugarcane. 07

OR

Q.4 (a) What do you understand by isoeletric point of amino acids? Explain. 03

2

(b) Discuss the classification and isolation or proteins. 04

(c) What do you understand by synthetic petrol? With a neat flow diagram,

describe Fischer – Tropsch method for the production of gasoline. 07

Q.5 (a) Discuss the classification of dyes based on applications. 03

(b) Briefly explain molecular orbital (MO) theory of colours. 04

(c) Discuss the preparation and uses of alizarin and phenolphthalein. 07

OR

Q.5 (a) Draw the structure of aspirin. How is it produced? 03

(b) Write a short note on antibacterial drugs. 04

(c) What is catalytic cracking? Briefly describe fixed – bed catalytic

cracking method for the production of gasoline. 07

*************

1



BE - SEMESTER–III(New) EXAMINATION – SUMMER 2016


Subject Name:Organic Chemistry and Unit Processes Time:10:30 AM to 01:00 PM Total Marks: 70 Instructions:


2. Make suitable assumptions wherever necessary. 3. Figures to the right indicate full marks.

MARKS

Q.1 Short Questions

14

1 Which radical is obtained after bracking of covalent bond ?

2 Resolution of Racemic mixture means compound is optically.

3 Give one example of Unit process.

4 Write the chemical formula of Oxalic acid.

5 What do you meant by hetero atoms ?

6 What do you meant by spent acid ?

7 What is Halogenation ?

8 Which is the best example of polynuclear compound ?

9 How many chiral carbon present in glucose ?

10 Which is other name of Beat sugar ?

11 Which effects are also known as redship and blueship ?

12 Give the one example of anticracking.

13 Why should nail and hair insoluble in water?

14 What is chromogen ?

Q.2

(a)

Classification of dye based on application and structural

representation.

03

(b) Explain synthetic petrol by Bergius process. 04

(c) Discuss about the manufacturing process of nitrobenzene

from benzene by continuous nitration with fortified spent

acid.

07

OR

(c) What is amination by reduction? Discuss various chemical

and physical factors affecting an amination by reduction.

07

Q.3 (a) Explain chemistry of Dextrose. 03

(b) Explain antimalarial drug with suitable example. 04

(c) What do you understand by electrophile and nucleophile?

Exaplain reaction and mechanism of addition reaction.

07

OR

2

Q.3 (a) Classification of proteins. 03

(b) Describe octane and cetane number with suitable examples, 04

(c) What is optical activity? Explain optical activity in tartaric

acid.

07

Q.4 (a) Write the derivatives of naphthalene. 03

(b) Classification of bond fission with examples. 04

(c) Discuss preparation, properties and applications of Palmitic

and stearic acid. 07

OR

Q.4 (a) Write the derivatives of carboxylic acid. 03

(b) What do you understand by geometrical isomerism ? 04

(c) Explain chemistry of any two five member ring of hetero

cyclic compounds.

07

Q.5 (a) What do you understand by polymerization ? 03

(b) Write the industrial applications of dye and pigments. 04

(c) Manufacturing of canesugar from sugar cane with flow sheet

diagram.

07

OR

Q.5 (a) Define halogenation, hydrogenation and hydrolysis. 03

(b) Write the applications of sulpha drugs. 04

(c) Describe the reaction, mechanism and applications of Michael

Reaction. 07

*************

1


GUJARAT TECHNOLOGICAL UNIVERSITY BE - SEMESTER–III (New) EXAMINATION – WINTER 2015


Subject Name: Organic Chemistry and Unit Process

Time: 2:30pm to 5:00pm Total Marks: 70 Instructions:





1 What is free radical? Give examples.

2 A reaction in which unsaturated hydro carbon participates is called _______ .

3 What are Enantiomers?

4 What are Racemic mixtures?

5 Common name of Ethanoic Acid is _________.

6 What is esterification?

7 A five membered heterocyclic compound containing oxygen atom is

called____________.

8 Non-hydrosible carbohydrates are called___________.

9 Give the general formula of Amino acid and Zwittor ion.

10 What is an antiseptic?

11 Benzene is colourless while Nitrobenzene is pale yellow in colour. Why?

12 What are nitrating agents?

13 Malachite Green is which type of dye?

14 What is thermal cracking?

Q.2 (a) Explain Carbonium ion, Carbanion and Carbenes. 03

(b) Differentiate between Nucleophile and Electrophile. 04

(c) What is an organic mechanism? Explain Friedel-Craft reactions with suitable

illustrations. 07

OR

(c) Explain nucleuophillic substitution reaction with suitable illustrations. 07

Q.3 (a) What is stereo chemistry? Explain optical activity. 03

(b) Explain optical isomerism in tartaric acid. 04

(c) Explain nitration reaction in detail and what are industrial applications of

oxidation process. 07

OR

Q.3 (a) What are heterocyclic compounds? Give name of five membered and six

membered heterocyclic compounds with their formulae. 03

(b) Mention physico-chemical properties of Furan. 04

(c) Give mechanism and application of Cannizzaro reaction and Wolf-Kishner

reaction. 07

Q.4 (a) What are carboxylic acids? What are acid amide and esters? 03

(b) What are carbohydrates? Classify them with examples. 04

(c) Discuss preparation and properties of carboxylic acids. 07 OR

Q.4 (a) What are proteins? Mention qualitative tests of proteins. 03

(b) How will you convert glucose to fructose? 04

(c) What is a colour? Explain various theories governing colour. 07

2

Q.5 (a) Define : Dyes, Pigments and Antibiotics 03

(b) Explain Azodyes and Vatdyes. 04

(c) Give synthesis of aspirin and paracetamol. 07

OR

Q.5 (a) Define : Knocking, Octane number and Cetane number 03

(b) What are the requisites of an ideal fuel? 04

(c) Explain fractional distillation of crude oil with a labeled diagram. Also give

applications of each fraction. 07

*************

1


GUJARAT TECHNOLOGICAL UNIVERSITY BE - SEMESTER–III(NEW) • EXAMINATION – SUMMER 2015

Subject Code: 2130501 Date:27/05/2015


Time: 02.30pm-05.00pm Total Marks: 70 Instructions:




Q.1 (a) What is fractional distillation? Explain distillation of crude oil with labeled

diagram.

07

(b) Explain fission reaction in detail. 07

Q.2 (a) Write short notes on:

(i) Optical isomerism

(ii) Enantiomers

07

(b) Write short notes on:

(i) Geometrical isomerism

(ii) Optical activity in lactic acid

07

OR

(b) Explain Killinai Fischer Synthesis in detail. 07

Q.3 (a) Explain nitration and sulphonation processes with suitable examples. 07

(b) Explain amination and oxidation processes with suitable examples. 07

OR

Q.3 (a) Explain manufacturing process of the Acetic acid with applications in detail. 07

(b) Explain manufacturing process of the Oxalic acid with applications in detail. 07

Q.4 (a) What are heterocyclic compounds? Give preparation, property and uses of

Pyrrole.

07

(b) Explain Wolf Kishner reaction along with its mechanism and uses. 07

OR

Q.4 (a) Explain preparation, property and uses of Furan. 07

(b) Explain diazotization reaction in detail. 07

Q.5 (a) What are carbohydrates? Classify different types of carbohydrates. 07

(b) Convert glucose to fructose. 07

OR

Q.5 (a) What is colour? Explain theory of colours in detail. 07

(b) What is dye? Classify dyes on the basis of its application. 07

*************

1


GUJARAT TECHNOLOGICAL UNIVERSITY BE - SEMESTER–III • EXAMINATION – WINTER • 2014

Subject Code: 2130501 Date: 18-12-2014


Time: 02.30 pm - 05.00 pm Total Marks: 70 Instructions:




Q.1 (a) Define cracking. Explain any one method of catalytic cracking. 07

(b) Write short note on synthetic petrol. 07

Q.2 (a) How is sucrose manufactured from sugar cane? Explain by giving flow sheet

diagram.

07

(b) Write a note on Ruff degradation. 07

OR

(b) Write a note on Killiani fischer synthesis. 07

Q.3 (a) Discuss the theories of color and constitution. 07

(b) What is dye? How are dyes classified on the basis of application? 07

OR

Q.3 (a) Explain the reaction mechanism of Wolf-kisher and canninzaro reaction. 07

(b) Explain the preparation, properties and use of furan. 07

Q.4 (a) Explain the manufacturing process of Acetic acid. 07

(b) Write a note on optical activity by using a suitable example. 07 OR

Q.4 (a) Explain unit process for nitration and sulphonation. 07

(b) Explain unit process for amination and oxidation in detail. 07

Q.5 (a) Explain nucleophilic substitution reaction in detail with their mechanism. 07

(b) Write a note on optical isomerism of lactic acid and tartaric acid. 07

OR

Q.5 (a) Explain your understanding for E,Z,notation. 07

(b) Discuss bromination of benzene with its reaction mechanism. 07

*************

1


GUJARAT TECHNOLOGICAL UNIVERSITY BE - SEMESTER–III (OLD) - EXAMINATION – SUMMER 2017

Subject Code: 130501 Date: 07/06/2017 Subject Name: Organic Chemistry and Unit Processes Time: 10:30 AM to 01:00 PM Total Marks: 70 Instructions:


Q.1 (a) Define the following terms: 07

(1) Cetane number (2) Auxochrome (3) Substitution reaction (4)

Stereoisomerism (5) Heterocyclic compound (6) Polynuclear aromatic

hydrocarbons (7) Polymers

(b) Fill in the blanks: 07

(1) IUPAC name of Formic acid is ______________.

(2) The unit process in which nitro group is introduced is called __________.

(3) __________ is used as anesthetic which is an alkyl halide.

(4) _____________ carbohydrate cannot be decomposed by hydrolysis.

(5) In Wolff-Kishner reduction of aldehydes ________is used as reducing agent.

(6) __________ is the sodium or potassium salts of higher fatty acids.

(7) In Friedel-Crafts reaction of benzene _____________ is used a catalyst.

Q.2 (a) Give an account of different types of organic reactions with their mechanisms. 07

(b) Explain different methods of preparation of synthetic petrol. 07

OR

(b) Write a note on modern theory of colour. 07

Q.3 (a) Write a short note on halogenation reaction. 03

(b) Explain isomerism in Tartaric acid. 04

(c) Describe chemical properties and uses of Acetic acid. 07

OR

Q.3 (a) Complete the following reactions with necessary reaction conditions:

(1) CH3CH2Br + 2H

(2) CH3CH2I + KOH

(3) CH3CH2ONa + CH3CH2I

03

(b) Give any four reactions of Acetic anhydride with necessary reaction conditions. 04

(c) Give detailed classification of carbohydrates. 07

Q.4 (a) Complete the following reactions with necessary reaction conditions:

(1) C6H5NH2 + CH3COCl

(2) C6H5NH2 + CHCl3 + 3KOH

(3) C6H5NH2 + 3 Br2

03

(b) Explain Cannizzaro Reaction with mechanism by suitable example. 04

(c) Give an account of electrophilic substitution reactions of Naphthalene. 07 OR

Q.4 (a) Draw the structures of Pyrrole, Furan and Thiophene. 03

(b) Write a note on nitration of Benzene. 04

(c) Explain properties of polymers. 07

Q.5 (a) Write a short note on sulphonation reaction. 03

(b) Give any four methods of preparation of alkyl halides with necessary reactions. 04

2

(c) Write a note on commercial methods of preparation of Phenol. 07

OR

Q.5 (a) Define: (1) Isomerism (2) Chiral carbon (3) Cis isomers 03

(b) Complete the following reactions with necessary reaction conditions:

(1) 2CH3CH2OH + 2Na

(2) CH3CH2OH + CH3COOH

(3) CH3CH2OH + HBr

(4) ) CH3CH2OH + SOCl2

04

(c) Describe chemistry of Pyridine. 07

*************

1


GUJARAT TECHNOLOGICAL UNIVERSITY BE - SEMESTER–III(OLD) • EXAMINATION – WINTER 2016



Time: 10:30 AM to 01:00 PM Total Marks: 70 Instructions:




Q.1 (a) Define the following terms.

(1) Homolytic bond fission.

(2) Colour.

(3) Chiral carbon.

(4) Heterocyclic.

(5) Monomer.

(6) Optical isomer.

(7) Spent acid.

07

(b) Explain modern theory of colour with Bathochromic effect and Hipsochromic

effect.

07

Q.2 (a) Describe continuous process for preparation of Nitrobenzene with fortified

spent acid.

07

(b) Describe preparation of synthetic petrol with its applications. 07

OR

(b) Write mechanism and applications of Perkin condensation and Cannizzaro

reaction.

07

Q.3 (a) Explain Geometrical isomerism in tartaric acid and Valeric acid. 07

(b) Write reaction and mechanism of Halogenation with suitable example. 07

OR

Q.3 (a) Explain chemistry of Aceton and Chloroform with uses. 07

(b) Explain Isolation, Properties and uses of Benzene. 07

Q.4 (a) Manufacturing process with flow-sheet diagram of sucrose from sugar-cane. 07

(b) Write the conversion of Aldopentose to next higher Aldose by Killiani

synthesis.

07

OR

Q.4 (a) Explain preparation, properties and uses of Phenol and Amine. 07

(b) Differentiate between soap and detergent with its uses. 07

Q.5 (a) What is polynuclear compound? Explain sulphonation in Naphthalene. 07

(b) Explain five member ring Heterocyclic compounds of Furan and Pyrrole. 07

OR

Q.5 (a) Differentiate between natural and synthetic polymer with suitable example and

its applications.

07

(b) Explain preparation, properties and uses of Grignard reagents. 07

*************

1



BE - SEMESTER–III EXAMINATION – SUMMER 2016



Time:10:30 AM to 01:00 PM Total Marks: 70

Instructions: 1. Attempt all questions.



Q.1 (a) Define the following terms with suitable examples:

(1) Nitration

(2) Knocking

(3) Dye

(4) Pigment

(5) Polymerization

(6) Isomerism

(7) Carbohydrates

07

(b) Write short notes on –

(1) Alkyl Halides

(2) Structure of Benzene

07

Q.2 (a) What is ‘Crude Oil’? Mention various constituents of Crude Oil along with

their applications.

07

(b) What is ‘Unit Process’? Explain amination process in detail. 07

OR

(b) Classify Isomerism and write sterio isomerism in detail. 07

Q.3 (a) Explain chemistry of following organic compounds:

(1) Ethyl Alcohol

(2) Polyethylene

07


(1) Modern Theory of Colour

(2) Classification of Dyes on the basis of their applications

07

OR

Q.3 (a) Explain chemistry of following organic compounds:

(1) Acetic Anhydride

(2) Chloroform

07


(1) Cracking

(2) Addition Reaction

07

Q.4 (a) Classify carbohydrates and give atleast one example of each along with

manufacturing process of Glucose.

07

(b) How will you convert Glucose to Fructose? Explain. 07 OR

Q.4 (a) Write short notes on –

(1) Cannizzaro Reactions

(2) Wolf-Kishner Reaction

07

2

(b) Explain manufacturing process, properties and applications of :

(1) Phenol

(2) Soaps

07

Q.5 (a) Write short notes on –

(1) Naphthalene and its derivatives

(2) Pyrole

07


(1) Properties and uses of Benzene

(2) Furan

07

OR

Q.5 (a) Explain Nucleophyllic substitution reaction with its mechanism. 07

(b) Explain Frideal Craft Reaction with suitable example. 07

*************

1


GUJARAT TECHNOLOGICAL UNIVERSITY BE - SEMESTER–III EXAMINATION – WINTER 2015



Time: 2:30pm to 5:00pm Total Marks: 70 Instructions:




Q.1 (a) What is Crude oil? Write a note on occurrence, composition and type of crude

oil.

07

(b) Explain fractional distillation of crude oil with labeled diagram. Give industrial

applications of various fractions of crude oil.

07

Q.2 (a) Explain the term colour, dye and pigment. Explain modern theory of colour. 07

(b) What is Nucleophile and Electrophile? Explain Friedel-Craft reaction with

application.

07

OR

(b) Explain different types of organic reactions in detail. 07

Q.3 (a) What is Isomerism? Explain Enantiomers in detail. 07

(b) What is Geometrical Isomerism? 07

OR

Q.3 (a) Explain Distereomerism with suitable examples. Also explain concept of

Chirality.

07

(b) With reaction mechanism, discuss substitution and sulphonation of benzene. 07

Q.4 (a) What are Carbohydrates? Classify them. 07

(b) Explain manufacturing, preparation and properties of Glucose. 07

OR

Q.4 (a) How will you convert Glucose to Fructose? 07

(b) Explain mechanism and application of Cannizzaro and Wolf-Kishner reaction. 07

Q.5 (a) What is Aromaticity? Explain preparation, properties and uses of Benzene. 07

(b) What is Polymerization? Distinguish between natural and synthetic Polymer. 07

OR

Q.5 (a) What are Heterocyclic compounds? Explain the chemistry of Furan. 07

(b) What are Polynuclear compounds? Explain nitration in Naphthalene. 07



BE - SEMESTER– III EXAMINATION – SUMMER 2015

Subject Code: 130501 Date: 27/05/2015

Subject Name: Organic Chemistry & Unit Process

Time: 02.30pm-05.00pm Total Marks: 70

Instructions:

Attempt all questions.



Q.1 (a) What is synthetic Petrol? Explain method of manufacturing of synthetic Petrol. 07

(b) Write a note on (a). Pigment (b) Dyes. 07

Q.2 (a) Explain fractional distillation of crude oil and state the varieties of it with uses. 07

(b) Write two examples of five member ring. Explain chemistry of any one

compound in detail. 07

OR

(b) Give note on (1) Acetic anhydride (2) Polyethylene. 07

Q.3 (a) Explain various reactions of benzene in detail. 07

(b) What is isomerism? Discuss the geometrical isomerism in tartaric acid and

valeric acid.

07

OR

Q.3 (a) Write preparation, properties and uses of oxalic acid and acetic acid. 07

(b) Note on (1) chloroform, (2) Ethanol. 07

Q.4 (a) Explain classification and chemical reactions of starch in detail. 07

(b) Give any two examples of poly nuclear aromatic compound and explain

sulphonation and aminophication of naphthalene.

07

OR

Q.4 (a) Write a note on Michael Dickman reaction with example. 07

(b) Describe carbohydrates. Explain the manufacturing process of glucose in detail. 07

Q.5 (a) What is heterocyclic compound? Discuss any two compounds with types of

reactions. 07

(b) Distinguish between synthetic and natural polymer with three nos. of examples. 07

OR

Q.5 (a) What is Grignard reaction? Give a short note on synthesis of Grignard reagent

and reactions with carbonyl groups. 07

(b) Write preparation, properties and uses of: (1) Phenol (2) soap and Detergent . 07 ************

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GUJARAT TECHNOLOGICAL UNIVERSITY BE - SEMESTER–III • EXAMINATION – WINTER • 2014


Subject Name: Organic Chemistry and Unit Processes





Q.1 (a) Answer the following questions:

(i) Which of the following is an electrophile?

NH3, CH3+, CN

-, H2O

(ii) Define Carbocation.

(iii) Give example of polynuclear hydrocarbon which sublimes

on heating.

(iv) Differentiate between homolysis and heterolysis.

(v) Write chemical reaction for inversion of cane sugar.

(vi) Write chemical reaction of conversion of salicylic acid into

aspirin.

(vii) Which among phenol and picric acid is more acidic and

why?

07

(b) Give a comparative account of SN1 and SN2 reaction. 04

(c) Write a note on Walden inversion. 03

Q.2 (a) What do you understand by unit processes? Explain sulphonation unit

process stating its significance. 07

(b) Answer the following:

(i) Give classification of carbohydrates.

(ii) Define cetane number and octane number.

4+3

OR

(b) Answer the following:

(i) Carry out conversion of aldohexose to ketohexose and vice-

versa.

(ii) Write in brief about fractional distillation of petroleum.

4+3

Q.3 (a) Explain quick vinegar process of manufacturing acetic acid. How will

you carry out following conversions?

(i) Acetic acid to acetic anhydride

(ii) Acetic acid to acetamide

07

(b) Write mechanism and applications of following reactions:

(i) reformatsky (ii) Perkin reaction

07

OR

Q.3 (a) Answer the following:

(i) Explain esterification reaction, giving its mechanism.

(ii) Differentiate between soap and detergent

07

(b) Write mechanism and applications of following reactions:

(i) Cannizzaro reaction (ii) Wolf Kischner reaction

07

Q.4 (a) Write about manufacturing of naphthalene from coal tar? 03

(b) Discuss structure of benzene. 04

(c) With suitable examples explain classification of dyes on the basis of

structure. 07

2/2

OR

Q.4 (a) What is the basis of classification of amino acids? Give example from

each class.

03

(b) What do you understand by heterocyclic compound? Give example of

any 5-membered heterocyclic compound and state its properties and

uses.

04

(c) Explain colour and constitution theory of dyes. 07

Q.5 (a) Differentiate between:

(i) Enantiomers and Disteromers

(ii) Meso and racemic mixture

04

(b) Write in brief about synthetic uses of Grignard agent. 05

(c) Write in brief about any process of manufacturing synthetic petrol. 05

OR

Q.5 (a) Explain optical isomerism of tartaric acid. 05

(b) Expalin electrophilic substitution reaction taking suitable example. 05

(c) Write about properties and uses of polythene and ethanol 04

*************

1


GUJARAT TECHNOLOGICAL UNIVERSITY BE - SEMESTER–III • EXAMINATION – SUMMER • 2014







Q.1 (a) Discuss the fractional distillation of crude oil and state the various important

fractions and their uses. 07

(b) Write short notes on: Occurrence, composition and types of crude oil. 07

Q.2 (a) Write physico-chemical properties of chloroform and ethanol. 07

(b) Describe carbohydrates along with classification and explain the manufacturing

process of glucose.

07

OR

(b) What are polynuclear aromatic compound? Give examples and explain nitration of

naphthalene.

07

Q.3 (a) Give the manufacturing process of phenol from benzene. Also give reactions of

benzene with bromine water, trichloro methane and chlorine.

07

(b) Give one preparation method of each: Chloroform, Acetone, Acetic Acid, Ethyl

alcohol, Aniline, Polyethene and Styrene.

07

OR

Q.3 (a) What is meant by organo metallic compound? Give manufacturing process of Ethyl

magnesium bromide in detail with its applications.

07

(b) What is LPG? Explain CNG and what are the alternatives for them. 07

Q.4 (a) Give the manufacturing process for naphthalene and its sulphonation. 07

(b) Explain the reaction mechanism of Perkin condensation and Cannizzaro reaction. 07

OR

Q.4 (a) Explain unit process for amination and oxidation in detail. 07

(b) Explain nucleuophillic substitution reaction in detail with their mechanism. 07

Q.5 (a) What do you understand by dyes? Explain its classification with suitable examples. 07

(b) Write short notes with applications of Hyperconjugation and Inductive effect. 07

OR

Q.5 (a) Explain Walden Inversion giving suitable example. 07

(b) Explain with example any two:

(1) Esterification.

(2) Homolysis.

(3) Addition Reaction.

07

*************

1/2


GUJARAT TECHNOLOGICAL UNIVERSITY BE - SEMESTER–III • EXAMINATION – WINTER 2013







Q.1 (a) Give classification of Carbohydrates. 07

(b) (I) Explain Optical isomerism in Tartaric acid. 04

(II) Discuss Amination of Naphthalene. 03

Q.2 (a) Explain SN1 and SN

2 reaction with mechanism. 07

(b) Discuss formation of an ester via Grignard Synthesis. 07

OR

(b) (I) What is a soap? Briefly describe manufacture of soap. 04

(II) Write a note on Reformatasky reaction. 03

Q.3 (a) Write a note on preparation and properties of Carboxylic acids. 07

(b) Give example and mechanism of the following reaction.

(I) Addition reaction.

(II) Electrophilic substitution reaction.

07

OR

Q.3 (a) Explain properties and uses of following compounds:

(I) Acetone (II) chloroform 07

(b) (I) Give Manufacturing process, properties and uses of Phenol. 04

(II)Write Properties of Polymers. 03

Q.4 (a) Discuss preparation of acetic acid by fermentation method. 07

(b) Write the Composition of Crude Oil. Explain preparation of “Synthetic

Petrol” by Bergius process.

07

OR

Q.4 (a) What do you mean by Heterocyclic compound? Discuss about any one

Five member ring compound. 07

(b) Explain the benzene in following points- 07

(I) Aromaticity

(II) Friedel Crafts alkylation

Q.5 (a) Write short note on Dyes and Pigments. 07

(b) (I) Give the conversion:- Glucose to Fructose

(II) What do you mean by Walden Inversion? 04

03

OR

Q.5 (a) Write a short note on:-

(I) Resonance

(II) Inductive Effect

07

(b) Define Unit Process. Discuss the manufacturing of Nitrobenzene from

benzene with mechanism.

07

2/2

*************

1/2


GUJARAT TECHNOLOGICAL UNIVERSITY BE - SEMESTER–III • EXAMINATION – SUMMER 2013

Subject Code: 130501 Date: 27-05-2013 Subject Name: Organic Chemistry and Unit Processes Time: 02.30 pm - 05.00 pm Total Marks: 70 Instructions:


Q.1 (a) Fill in the Blanks 07

1. __________ &__________ are two type of bond fission. 2. Modern theory of colour gives __________ & _________ effects. 3. __________ & __________ processes are used for preparation of

synthetic petrol.

4. Stereo isomerism is classified into _________ & __________ isomers. 5. Sucrose on hydrolysis gives __________ & _____________. 6. Two examples of Polyamides are _________ & ___________. 7. Examples of any two oxidizing agents are _________ & _________. (b) Define the following 07 1. Dyes and Pigments. 2. Sulfation and Sulponation 3. Hydration and Hydrogenation 4. Octane no and Cetane no 5. Optical isomerism. 6. Saponification and Esterification. 7. Diazotisation

Q.2 (a) Explain in detail the distillation of Crude oil showing the importance of different fractions obtained.

07

(b) Explain different theories of colour. 07 OR (b) Write in detail the classification of Synthetic dyes according to its

structure and application. 07

Q.3 (a) Explain different types of synthetic and natural polymer. Explain

Polyamides in detail. 07

(b) Write preparation, properties and uses of Benzene and Phenol. 07 OR

Q.3 (a) Define Isomerism. Show its importance in organic molecules. Explain Geometrical Isomerism in detail.

07

(b) Write the laboratory preparation of Grignard reagent. Show its uses in formation of alcohol, acids and esters.

07

Q.4 (a) Explain with mechanism Oxidation and Reduction reaction with at least

two examples in each. 07

(b) Write preparation, properties and uses of Acetone and Ethyl alcohol. 07 OR

Q.4 (a) Explain with mechanism Amination and Nitration reaction with a at least two examples in each.

07

(b) Give classification of Carbohydrate and write in detail the conversion of 07

2/2

Aldohexose to Ketohexose and Ketohexose to Aldohexose.

Q.5 (a) Explain Carbonium ion, Carbanion ion, Free radical, Electrophiles and Nucleophiles.

07

(b) Explain with mechanism Caninzaro, and Reformatsky reaction. 07 OR

Q.5 (a) Define Polynuclear hydrocarbon and Heterocyclic compound. Write preparation, properties and uses of Naphthalene and Pyrrole.

07

(b) Explain the importance of Carboxylic acid by forming the derivative carbonyl halide, carbonyl amide, ester and anhydride with atleast one example.

07

*************

Documents

GUJARAT TECHNOLOGICAL UNIVERSITY - mytoolbag.inmytoolbag.in/media/GTUPAPERS/1/2/CHEMICAL/S3/OCUP.pdf · Ma nufacture Process of Acetic acid, Formic acid, Oxalic acid, Palmitic acid