CLASS -XIII (Spartan Batch) C - 6 :Types of Organic Reactions

1GCI DTS (Dimond Test Series) for NEET- 2020

CLASS -XIII (Spartan Batch)C - 6 :Types of Organic Reactions

1. Which of the following compound does not show Fridel

Craft reaction –

(1) Aniline

(2) Nitrobenzene

(3) Phenol

(4) all of the above

2. The order of reactivity of the following compounds

towards electrophilic substitution will be -

(1) I > II > III > IV

(2) IV > III > II > I

(3) II > I > III > IV

(4) III > II > I > IV

3. Which is the following alkenes is most reactive towards

electrophilic addition reaction?

(1)

CH=CH2

COOH

(2)

CH=CH2

CH3

(3)

CH=CH2

OH

(4) All have same reactivity

4. CH3–CC–CH

3Lindar catalyst

Pd BaSO

[ ]4

ABr2 B

A and B are–

(1) A is cis–2–butene, B is mesocompound

(2) A is trans–2–butene, B is recemic mixture

(3) A is cis–2–butene, B is racemic mixture

(4) A is trans–2–butane, B is mesocompound

1.

(1)

(2)

(3)

(4)

2.

(1) I > II > III > IV

(2) IV > III > II > I

(3) II > I > III > IV

(4) III > II > I > IV

3.

(1)

CH=CH2

COOH

(2)

CH=CH2

CH3

(3)

CH=CH2

OH

(4)

4. CH3–CC–CH

3Lindar catalyst

Pd BaSO

[ ]4

ABr2 B

A B

(1) A, –2–butene B

(2) A –2–butene B

(3) A –2–butene B

(4) A –2–butane , B

https://www.print-driver.com/?demolabel-en



5. Among the following which is more reactive toward AgNO3

(1) (2)

(3) (4)

6. The major product formed in the following reaction

(1)

(2)

(3)

(4)

7. Dehydration fo following alcohols will be in order :

(1) 1 < 2 < 3 < 4

(2) 4 > 3 > 1 > 2

(3) 4 > 2 > 1 > 3

(4) 1 > 3 > 4 > 2

5. AgNO3

(1) (2)

(3) (4)

6.

(1)

(2)

(3)

(4)

7.

(1) 1 < 2 < 3 < 4

(2) 4 > 3 > 1 > 2

(3) 4 > 2 > 1 > 3

(4) 1 > 3 > 4 > 2




8.

The end product Y is –

(1)

(2)

(3)

(4)

9. Anisole does not react with HI to from C6H

5I and CH

3OH

because :

(1) C6H

5 is less stable

(2) C6H

5I has high molecular weight

(3) Aromatic carbon–oxygen bond is stronger

(4) CH3OH is more volatile than CH

3I

10. If phenol react with CHCl3 and KOH then product is

salicylaldehyde in this reaction reagent is -

(1) Electrophile (2) Nucleophile

(3) Carbocation (4) None of these

8.

Y

(1)

(2)

(3)

(4)

9. HI C6H

5I CH

3OH

(1) C6H

5

(2) C6H

5I

(3)

(4) CH3I CH

3OH

10. CHCl3 KOH

(1) (2)

(3) (4)




11. In the treatment of cyclohexene with NBS; which of the

following product will be least stable–

(1) (2)

(3) (4) can't be predicted

12. Which of the following is not true in case of reaction with

heated copper at 300o C ?

(1) Phenol Benzyl alcohol

(2) Primary alcohol Aldehyde

(3) Secondary alcohol Ketone

(4) Tertiary alcohol Olefin.

13. In the given reaction sequence

(A) and (B) will respectively be -

(1)

(2)

(3)

(4)

14. Which of the following substrates show cannizzaro’s

reaction :

[a] CH3CHO [b] HCHO

[c] CCl3CHO [d] C2H5CHO

(1) only b (2) b, a, c

(3) b, c, d (4) a and d

11. NBS

(1) (2)

(3) (4)

12. 300o C

(1) Phenol Benzyl alcohol

(2) Primary alcohol Aldehyde

(3) Secondary alcohol Ketone

(4) Tertiary alcohol Olefin.

13.

(A) (B)

(1)

(2)

(3)

(4)

14.

[a] CH3CHO [b] HCHO

[c] CCl3CHO [d] C2H5CHO

(1) b (2) b, a, c

(3) b, c, d (4) a d




15. Cross Cannizzaro reaction is example of :

(1) redox reaction

(2) disproportionation

(3) Both (1) and (2)

(4) oxidation

16. C2H

5 – Cl + AgCN ?

(1) C2H

5 – CN

(2) C2H

5NC

(3) C2H

5 – NH

2

(4) C2H

5–CH

3

17. SN1 reaction accelerates in which of the following solvents

(1) Acetone

(2) Water

(3) Ethanol

(4) Both (2) and (3)

18. The correct products of the following reaction:

(1)

(2)

(3)

(4)

15. -

(1)

(2)

(3) (1) (2)

(4)

16. C2H

5 – Cl + AgCN ?

(1) C2H

5 – CN

(2) C2H

5NC

(3) C2H

5 – NH

2

(4) C2H

5–CH

3

17. SN1

(1) Acetone

(2) Water

(3) Ethanol

(4) (2) (3)

18.

(1)

(2)

(3)

(4)




19. A compound (A), C5H

10O, forms a phenyl hydrazone and

gives negative Tollen's and iodoform tests. The compound

on reduction gives n–pentane. The compound (A) is–

(1) pentanal

(2) pentan–2–one


(4) amyl alcohol

20. Product of above reaction will be:

(1) racemic mixture

(2) diastereomers

(3) meso

(4) constitutional isomers

21. Which of the following will not give Friedel–Crafts reaction

in presence of anhydrous AlCl3.

(1)

(2)

(3)

(4) All show

22. Which of the following is are not true :

a. All ortho and para directing groups activate the ben-

zene ring

b. Meta directing groups increase electron density at meta

porition

(1) a (2) a, b

(3) b (4) both true

23. Which of the following has the highest boiling point-

(1) CH3OCH

2CH

3

(2) CH3CH

2CH

2OH

(3) CH3COOH

(4) CH3CH

2CH

2CH

3

19. (A), C5H

10O

n–pentane (A)

(1) pentanal



(4) amyl alcohol

20.

(1) racemic mixture

(2) diastereomers

(3) meso

(4) constitutional isomers

21. AlCl3

(1)

(2)

(3)

(4)

22.

a.

b.

(1) a (2) a, b

(3) b (4)

23.

(1) CH3OCH

2CH

3

(2) CH3CH

2CH

2OH

(3) CH3COOH

(4) CH3CH

2CH

2CH

3




24. Acetyl chloride + A Aspirin. What is A in the above

reaction -

(1) Salicylic acid

(2) Salicylaldehyde

(3) Acetic anhydride

(4) Salicyl alcohol

25. The reactivity order of the following towards Nucleophilic

addition reaction is–

HCHO CH CHO CH COCHl ll lll

, ,( ) ( ) ( )

3 3 3

(1) l > ll > lll

(2) lll > ll > l

(3) l > lll > ll

(4) ll > lll > l

26. The major product obtained in the reaction

is

(1)

(2)

(3)

(4)

27. Cannizzaro reaction is not given by -

(1) CH3CHO (2) HCHO

(3) C6H

5CHO (4) (CH

3)3C–CHO

28. How many alkenes upon catalytic hydrogenation can produce

pentane -

(1) 4 (2) 2

(3) 5 (4) 1

29. Which of the following reaction does not proceeds through

formation of cyclic transition state/cyclic intermediate -

(1) Hydorboration oxidation reaction of alkene

(2) Ozonolysis reaction of alkene

(3) Addition of Baeyer's regent at alkene

(4) Addition of HBr in presence of peroxide at alkene

24. + A ,

A -

(1)

(2)

(3)

(4)

25.

HCHO CH CHO CH COCHl ll lll

, ,( ) ( ) ( )

3 3 3

(1) l > ll > lll

(2) lll > ll > l

(3) l > lll > ll

(4) ll > lll > l

26.

(1)

(2)

(3)

(4)

27.

(1) CH3CHO (2) HCHO

(3) C6H

5CHO (4) (CH

3)3C–CHO

28.

(1) 4 (2) 2

(3) 5 (4) 1

29. /

(1)

(2)

(3)

(4) HBr




30. The main product of following elimination reaction will be -

Product

(1) (2)

(3) (4)

31. In free radical bromination reaction, 3° alkyl bromide form

as Major product in-

(1)

(2)

(3)

(4) All of these

32. Suppose following reaction

Product

The structure of main product will be -

(1) (2)

(3) (4)

30.

(1) (2)

(3) (4)

31. 3°

(1)

(2)

(3)

(4)

32.

(1) (2)

(3) (4)




33. Suppose the following acetylation reaction-

Most suitable explanation for presence of pyridine to favour

the rate of reaction is -

(1) Acetylation of alcohol or phenol only takes place in basic

medium

(2) Pyridine reacts with HCl produce in reaction thus shift

the equilibrium toward right

(3) Pyridine reacts with phenolic–OH group and form salt

(4) Analgesic effect of aspirin is only operational in presence

pyridine

34. Suppose the following reaction sequence :

The structure of main product (C) is -

(1) (2)

(3) (4)

35. Phenol its self does not reacts with CO2 with phenoxide ion

does undergoes electrophilic substitution reaction at ortho

position because -

(1) Phenol is meta directing

(2) In phenoxide ion 'O–' is much more stronger ring activator

thus facilitate the ESR with CO2

(3) CO2 is an strong electriophile thus reacts with phenoxide

ion only

(4) –OH group of phenol does not involve in resonance

with ring

33.

(1)

(2) HCl

(3) –OH

(4)

34.

(C)

(1) (2)

(3) (4)

35. CO2

(1)

(2) 'O–'

CO2

ESR

(3) CO2

(4) –OH




36. Total number of optically active compound(s) formed in

the given reaction is-

(1) 4

(2) 3

(3) 2

(4) Zero

37. Para substituted benzyl bromide undergoes SN1 reaction

with nucleophiles.

Arrange the given compounds in decreasing order of

reactivity for the above reaction-

(I)

(II) CH Br2

(III)

(IV)

(1) (I) > (IV) > (II) > (III)

(2) (I) > (II) > (IV) > (III)

(3) (III) > (II) > (IV) > (I)

(4) (IV) > (I) > (III) > (II)

36.

(1) 4

(2) 3

(3) 2

(4) Zero

37. SN1

(I)

(II) CH Br2

(III)

(IV)

(1) (I) > (IV) > (II) > (III)

(2) (I) > (II) > (IV) > (III)

(3) (III) > (II) > (IV) > (I)

(4) (IV) > (I) > (III) > (II)




38.

CH CH 2 3

H C – N 3 – CH – CH – CH2 2 3

CH2

CH CH3

CH3

OH

?

Major Prodect is -

(1) CH2 = CH

2

(2) CH2 = CH – CH

3

(3) CH = C – CH2 3

CH3

(4) None of aobve

39. Aniline in a set of reactions yielded a product D

H

Ni

2

CD

CuCN

HNO2

NH2

NaNO2

HCl

0°C

A B

The structure of the product D would be -

(1) C6H

5CH

2OH

(2) C6H

5CH

2NH

2

(3) C6H

5NHOH

(4) C6H

5NHCH

2CH

3

40. Which of the following form only one mon chloro derivatives

on chlorination reaction -

(1) CH3 – CH

2 – CH

3

(2)

CH3

CH – C – CH3 3

CH3

(3) CH3

CH – CH – CH3 3

(4) CH3

CH – CH – CH – CH3 2 3

38.

CH CH 2 3

H C – N 3 – CH – CH – CH2 2 3

CH2

CH CH3

CH3

OH

?

(1) CH2 = CH

2

(2) CH2 = CH – CH

3

(3) CH = C – CH2 3

CH3

(4) None of aobve

39. D

H

Ni

2

CD

CuCN

HNO2

NH2

NaNO2

HCl

0°C

A B

D

(1) C6H

5CH

2OH

(2) C6H

5CH

2NH

2

(3) C6H

5NHOH

(4) C6H

5NHCH

2CH

3

40.

(1) CH3 – CH

2 – CH

3

(2)

CH3

CH – C – CH3 3

CH3

(3) CH3

CH – CH – CH3 3

(4) CH3

CH – CH – CH – CH3 2 3




41. The Weakest C –Cl bond is present in -

(1)

Cl

CH3

(2)

Cl

CH3

(3)

Cl

CH3

(4)

CH – Cl2

42.

This reaction is used in-

(1) Aspirin formation

(2) Bakelite formation

(3) TNT formation

(4) RDX formation

43. (A)

The product (A) is -

(1)

(2)

(3)

(4)

41. C –Cl

(1)

Cl

CH3

(2)

Cl

CH3

(3)

Cl

CH3

(4)

CH – Cl2

42.

(1)

(2)

(3) TNT

(4) RDX

43. (A)

(A)

(1)

(2)

(3)

(4)




44. P (Major)

Major product P is-

(1)

(2)

(3)

(4)

45. H – C C – CH3

HBr exces( ) A H O2 B compound B is

(1) A diol

(2) An aldehyde

(3) A ketone

(4) An alkyl halide

44. P (Major)

P

(1)

(2)

(3)

(4)

45. H – C C – CH3

HBr exces( ) A H O2 B B

(1) A diol

(2) An aldehyde

(3) A ketone

(4) An alkyl halide

Answer Key

Qus. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Ans. 4 1 3 3 2 4 3 3 3 1 3 1 1 1 1 2 4 1 3 3

Qus. 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Ans. 3 2 3 1 1 4 1 2 4 1 4 3 2 2 2 3 1 1 1 2

Qus. 41 42 43 44 45

Ans. 4 2 2 3 3


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CLASS -XIII (Spartan Batch) C - 6 :Types of Organic Reactions