Alcohol, Phenol and Ethers

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1Which one is primary alcohol( )Butaon-1-ol

( )Buten-2-ol

( )2,3-dimethylhexane-4-ol

( )Propan-2-ol

Single Answer

2Ethyl alcohol is industrially prepared from ethylene by( )Permanganate oxidation

( )Absorbing in H2SO4 followed by hydrolysis

( )Fermentation

( )Catalytic reduction

Single Answer

3Which of the following cannot be produced by acidic dehydration of alcohols?( )Aldehydes

( )Alkyl hydrogen sulphate

( )Ethers

( )Alkene

Single Answer

4Dehydration of glycerol gives( )Acrolein

( )Propene

( )Propane

( )Benzene

Single Answer

5Maximum number of active hydrogens are present in( )Methanol

( )Methane

( )Acetic acid

( )Glycerol

Single Answer

6Salol is prepared from( )Salicylic acid and phenol

( )Salicylic acid and methyl alcohol

( )Both

( )None

Single Answer

7Phenol is heated with CCl4 and alkaline KOH when salicylic acid is produced. The reaction is known as( )Sommelet reaction

( )Friedel-Craft reaction

( )Rosenmund's reaction

( )Reimer-Tiemann's reaction

Single Answer

8Ethanol containing one methanol is called( )Power alcohol

( )Rectified spirit

( )Methylated spirit

( )Absolute spirit

Single Answer

9Mild oxidation of glycerol with H2O2/FeSO4 gives( )Glyceraldehyde

( )Dohyroxy acetone

( )Glycerose

( )None

Single Answer

10Hydrolytic conversion of sucrose into glucose and fructose is known as( )Insertion

( )Inhibition

( )Induction

( )Inversion

Single Answer

11Alcohols of low molecular weight are( )Insoluble in water

( )Soluble in water

( )Soluble in water on heating

( )Insoluble in all solvents

Single Answer

12Alcohols react with Grignard's reagent to form( )Alkynes

( )All these

( )Alkanes

( )Alkenes

Single Answer

13Alcohol fermentation is brought about by the action of( )Invertase

( )O2

( )Yeast

( )CO2

Single Answer

14Primary and secondary alcohols on action of red hot copper give( )Only ketones

( )Only aldehydes

( )Aldehydes and ketones respectively

( )Ketones and aldehydes respectively

Single Answer

15Ethyl alcohol on oxidation with K2Cr2O7 gives( )Acetic acid

( )Acetaldehyde

( )Formic acid

( )Formaldehyde

Single Answer

16The strongest acid among the following aromatic compound is( )O-nitrophenol

( )P-nitrophenol

( )P-chlorophenol

( )M-nitrophenol

Single Answer

17Which of the following groups will increase the acidity of phenol?( )-NO2

( )-CN

( )-X(halogen)

( )All

Single Answer

18Which is used as an antifreeze?( )Methanol

( )Water

( )Ethyl alcohol

( )Glycol

Single Answer

19Which one of the following compounds gives characteristic deep colour with FeCl3 solution?( )Ethanol

( )Phenol

( )Acetone

( )Acetic acid

Single Answer

20C2H5OH can be differentiated from CH3OH by( )Reaction with HCl

( )Iodoform test

( )Solubility in water

( )Reaction with NH3

Single Answer

21Scientific study of fermentation was first made by( )Biot

( )Pasteur

( )Buchner

( )Liebig

Single Answer

22Phenol is more readily soluble in( )Dil.HCl

( )NaOH sol

( )Both NaOH and HCl

( )Sodium bicarbonate solution

Single Answer

23On heating glycerol with conc.H2SO4, a compound with unpleasant odour is obtained. The compound is( )Glycerol sulphate

( )Methyl alcohol

( )Formic acid

( )Prop-2-enal

Single Answer

24Grignard reagent on reaction with ketone forms( )Carboxylic acid

( )Tertiary alcohol

( )Primary alcohol

( )Secondary alcohol

Single Answer

25Sodium phenoxide reacts with CO2 at 400 K and 4.7 atm pressure to give( )Benzoic acid

( )Sodium salicylate

( )Salicyl aldehyde

( )Catechol

Single Answer

26The order of reactivity of halogen acids for reaction with C2H5OH is( )HBr>HCl>HI

( )HI>HBr>HCl

( )HCl>HBr>HI

( )HBr>HI>HCl

Single Answer

27Which of the following statements is correct?( )Phenol is more acidic than ethanol

( )Phenol is more acidic than CH3COOH

( )Phenol is more acidic than carbonic acid

( )Phenol is less acidic than ethyl alcohol

Single Answer

28Isopropyl alcohol on oxidation gives( )Acetaldehyde

( )Acetone

( )Ether

( )Ethylene

Single Answer

29Which of the following statements is incorrect?( )Alcohol with less number of carbon atoms is more soluble in water than alcohol with more number of carbon atoms

( )Alcohol produces H2 by reaction with sodium metal

( )Ethyl alcohol is heavier than water

( )Ethyl alcohol evaporates more quickly

Single Answer

30Which of the following process is employed to convert alkyl halide into alcohol?( )Dehydrohalogenation

( )Substitution

( )Molecular rearrangement

( )Addition

Single Answer

31The boiling point of glycerol is more than propanal beacuse of( )Hybridisation

( )H-bonding

( )Resonance

( )All these factors

Single Answer

32Zn powder + Ph-OH---------->X. In this reaction the product X will be( )Anisole

( )Phenyl acetate

( )Benzene

( )Benzaldehyde

Single Answer

33An organic compound 'X' on treatment with acidified K2Cr2O7 gives a compound 'Y' which reacts with I2 and sodium carbonate to form triodomethane. The compound 'X' is( )CH3COCH3

( )CH3CHO

( )CH3CH(OH)CH3

( )CH3OH

Single Answer

341-Phenylathanol can be prepared by reaction of benzaldehyde with( )Mrthyl iodide and magnesium

( )C2H5I and Mg

( )Methyl bromide and AlBr3

( )Methyl bromide

Single Answer

35The reaction of aromatic acyl chloride and phenol in the presence of a base NaOH or pyridine is called( )Kolbe's reaction

( )Sandmeyer's reaction

( )Schotten Baumann reaction

( )Perkin's reaction

Single Answer

36Which of the following compound is known as oil of winter green?( )Phenyl acetate

( )Methyl salicylate

( )Phenyl salicylate

( )Phenyl benzoate

Single Answer

37Ethylene reacts with 1% cold alkaline KMnO4 to give( )Oxalic acid

( )Acetone

( )Ethylene glycol

( )Formaldehyde

Single Answer

38Phenol gives _________ colour with neutral FeCl3 solution.

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39Which of the following will not give iodoform test?( )Ethanal

( )Benzyl alcohol

( )Isopropyl alcohol

( )Ethanol

Single Answer

40Which of the following is the most suitable method for removing the traces of water from ethanol?( )Reacting with Mg

( )Distilling it

( )Reacting with Na metal

( )Passing dry HCl through it

Single Answer

41Na reacts with phenol to produce( )CO gas

( )Benzene

( )H2 gas

( )CO2 gas

Single Answer

422,4,6-trinitrophenol is known as

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43Propanone is the product obtained by dehydrogenation of( )Propanethoil

( )1-propanol

( )2-propanol

( )Isobutyl alcohol

Single Answer

44When ethylene glycol is heated with acidified potassium permanganate, the main organic compound obtained is( )Formic acid

( )Oxalic acid

( )Glyoxal

( )Ethanol

Single Answer

45Which of the following compound is obtained on passing ethanol vapours on heated Al2O3?( )Ethylether

( )Acetone

( )Ethanol

( )Ethane

Single Answer

46Which of the following is correct?( )Sucrose on reaction with NaCl gives invert sugar

( )Reaction of vegetable oil with H2SO4 gives glycerine

( )Reduction of any aldehyde gives secondary alcohol

( )Alcoholic iodine with NaOH gives iodoform

Single Answer

47A compound of formula C4H10O reacts with sodium and undergoes oxidation to give a carbonyl compound wich does not reduce Tollen's reagent, the original compound is( )Diethyl ether

( )N-butyl alcohol

( )Sec-butyl alcohol

( )Isobutyl alcohol

Single Answer

48A compound is soluble in conc.H2SO4, it does not decolourise bromine in carbon tetrachloride but is oxidized by chromic anhydride in aqueous sulphuric acid within two seconds, turning orange solution to blue, green and then opaque. The orignal compound is( )Primary alcohol

( )Tertiary alcohol

( )Alkene

( )Ether

Single Answer

493 moles of ethanol react with one mole of phosphorus tribromide to form 3 moles of bromoethane and one mole of X. Which of the following is X?( )H3PO2

( )HPO3

( )H3PO3

( )H3PO4

Single Answer

50An organic compound A reacts with methyl magnesium iodide to form an addition product which on hydrolysis forms the compound B. Compound B gives blue colour salt in Victor Meyer's test. The compound A and B are respectively( )Acetaldehyde, ethyl alcohol

( )Acetone, isopropyl alcohol

( )Acetaldehyde, tertiary butyl alcohol

( )Acetaldehyde, isopropyl alcohol

Single Answer

51Organic acid without a carboxylic acid group is( )Ascorbic acid

( )Picric acid

( )Oxalic acid

( )Vinegar

Single Answer

52During dehydration of alcohols to alkenes by heating with conc.H2SO4, the initial step is( )Protonation of alcohol molecule

( )Elimination of water

( )Formation of carbocation

( )Formation of an ester

Single Answer

53Which is more acidic?( )P-nitrophenol

( )Phenol

( )M-cresol

( )O-cresol

Single Answer

54The only alcohol that can be prepared by indirect hydration of alkene is( )Isobutyl alcohol

( )Propyl alcohol

( )Ethyl alcohol

( )Methyl alcohol

Single Answer

55When alcohol reacts with conc.H2SO4 intermediate compound formed is( )Carbonium ion

( )Alkoxy ion

( )Alkyl hydrogen sulphate

( )None of these

Single Answer

56Carbolic acid is

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57Williamson's synthesis is used to prepare

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58When phenol is distilled with zinc dust, it is reduced to( )Benzaldehyde

( )Hexanol

( )Toluene

( )Benzene

Single Answer

59Which one is used as a fuel for internal combustion engines in many european countries?( )CH3COOH

( )C2H2

( )CH3OH

( )C2H5OH

Single Answer

60Which one of the following immediately reacts with conc.HCl in the presence of ZnCl2?( )Ether

( )Secondary alcohol

( )Tertiary alcohol

( )Primary alcohol

Single Answer

61The reaction of sodium with ethanol gives( )H2

( )H2O

( )CH3OH

( )NaH

Single Answer

62Which of the following is an isomer of ethanol?( )CH3OH

( )CH3OCH3

( )C2H5OC2H5

( )C2H5OH

Single Answer

63Industrial alcohol may be denatured by the addition of( )Any of these

( )Pyridine

( )Acetone

( )Methyl alcohol

Single Answer

64Rectified spirit contains alcohol about( )85%

( )95%

( )80%

( )90%

Single Answer

65Ethanol can be converted into ethanoic acid by( )Hydration

( )Fermentation

( )Hydrogenation

( )Oxidation

Single Answer

66Which compound is more soluble in water?( )N-hexanol

( )C2H5OH

( )C6H5OH

( )CH3OCH3

Single Answer

67Which compound shows H-bonding?( )C2H6

( )C2H5OH

( )C2H5Cl

( )CH3-O-CH3

Single Answer

68Which of the following is produced when an aqueous solution of butan-2-ol is refluxed with dil acidified KMnO4?( )Butanone

( )Butanoic acid

( )Butanol

( )Butane

Single Answer

69Which of the following will not react with sodium metal to release hydrogen?( )C6H5OH

( )C6H5CH2OH

( )CH3CH2OH

( )CH3CH2CH3

Single Answer

70Which one of the following correctly describe the acid properties of phenol?( )Stronger than carboxylic acid

( )Stronger than HCl

( )An acid stronger than carbonic acid

( )Weaker than carboxylic acid

Single Answer

71Which of the following is weakly acidic in nature?( )Alcohol

( )Phenol

( )Amide

( )Aldehyde

Single Answer

72Dow's process is used for preparation of

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73Oxidation of 2-propanol gives

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74Ethyl alcohol may be identified by( )Ring test

( )Iodoform test

( )Bazeyer's test

( )Tollen's test

Single Answer

75Glucose in presence of zymase is converted into

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76The malt-sugar in presence of yeast or invertase gives

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77Oxidation of methyl alcohol gives

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78Methyl alcohol possesses( )Burning taste

( )Poisonous

( )Causing blindness

( )All these

Single Answer

79Which of the following is known as wood spirit?( )Propyl alcohol

( )Ethyl alcohol

( )Butyl alcohol

( )Methyl alcohol

Single Answer

80Which of the following is used as anesthetics?( )Alcohol

( )Diethyl ether

( )Phenol

( )Dimethyl ether

Single Answer

81Nitration of phenol gives( )O-nitrophenol

( )P-nitrophenol

( )M-nitrophenol

( )Both o and p-nitrophenol

Single Answer

82Alcohol reacts with halogen acid to produce

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83When phenol is reduced in Zn dust, we get( )Cyclohexane

( )Benzyne

( )Benzene

( )Cyclohexene

Single Answer

84According to lewis concept, ethers behave as( )Acid

( )Base

( )Acid as well as a base

( )None

Single Answer

85Methyl alcohol is not used( )For denaturing of ethyl alcohol

( )As an anti-freezing agent

( )As a solvent

( )As a substitute for petrol

Single Answer

86Which compound is called universal solvent?( )H2O

( )C2H5OH

( )CH3-O-CH3

( )CH3OH

Single Answer

87Which enzyme is not involved in fermentation of starch?( )Zymase

( )Urease

( )Invertase

( )Diastase

Single Answer

88Ethanol can be converted into ethanoic acid by( )Fermentation

( )Hydration

( )Hydrogenation

( )Oxidation

Single Answer

89Which compound will not dissolve in water?( )C2H5OH

( )CH3CH2CH2OH

( )CH3OH

( )C6H6

Single Answer

90Which compound is more soluble in water?( )CH3OCH3

( )C2H5OH

( )Benzene

( )Hexane

Single Answer

91Which compound does not show hydrogen bonding with water?( )C6H5OH

( )CH3OH

( )C2H5OH

( )CH3-O-CH3

Single Answer

92Which compound shows hydrogen bonding?( )CH3-O-CH3

( )C2H6

( )C2H5Cl

( )C2H5OH

Single Answer

93Diethyl ether is obtained by Williamson's synthesis using( )Ethanol + Na + C2H5Br

( )Methanol + Mg + CH3Br

( )Methanol + Na + CH3Br

( )Ethanol + Mg + C2H5Br

Single Answer

94IUPAC name of diethyl ether is

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95Methanol and ethanol can be distinguished by( )Lucas test

( )Dichromate/H2SO4 oxidation test

( )Flame test

( )Iodoform test

Single Answer

96The test used for the detection of ethanol in the mouth of a drunk driver is that the drunk driver is asked to blow air into a solution of K2Cr2O7 and H2SO4. The colour changes, if the driver is drunk( )From orange to green

( )From pink to green

( )From pink to colourless

( )From orange to colourless

Single Answer

97When sodium metal reacts with alcohols( )Hydrogen gas is evolved

( )Alcohol is reduced

( )Sodium hydroxide is obtained

( )Alcohol is polymerized

Single Answer

98The boiling points of alcohols are higher than corresponding alkanes. This is because( )Alkanes are dipolar compounds

( )Alcohols are sweet in taste

( )Alcohols are soluble in water

( )Of H-bonding in between molecules of alcohol

Single Answer

99Which is not the common name of an isomeric alcohol with formula C4H10O( )1-butanol

( )Ter-butyl alcohol

( )Sec-butyl alcohol

( )Isobutyl alcohol

Single Answer

100Alcohols, phenol and ethers may be considered as derivatives of( )Benzene

( )Hydrocarbons

( )Water

( )Carboxylic acids

Single Answer

101Formula of secondary alcohol is( )R-OH

( )R3COH

( )R2CHOH

( )R-CH2OH

Single Answer

102Methyl alcohol on oxidation with acidified K2Cr2O7 gives( )CH3CHO

( )CH3COCH3

( )CH3COOH

( )HCOOH

Single Answer

103An alcohol produced in the manufacture od soap is( )Ethylene glycol

( )Ethanol

( )Butanol

( )Glycerol

Single Answer

104Haloform reaction is used to prepare( )CHCl3

( )CCl4

( )Halogens

( )Halides

Single Answer

105Ethylidene chloride (CH2CCl2) on hydrolysis with NaOH gives

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106Action of nitrous acid on ethyl amine gives( )C2H6

( )C2H5OH

( )NH3

( )Nitromethane

Single Answer

107Iodoform can not be prepared from( )CH3COCH3

( )CH3OH

( )CH3CHO

( )C2H5OH

Single Answer

108When glycerol is heated with KHSO4, the compound formed is ( )Gluconic acid

( )Dihydroxy acetone

( )Glyceraldehyde

( )Acrolein

Single Answer

109Which one of the following is not a phenol?( )M-cresol

( )O-cresol

( )Benzyl alcohol

( )P-cresol

Single Answer

110Which of the following does not give effervescence with Na2CO3?( )Picric acid

( )Benzoic acid

( )Benzene sulphonic acid

( )Phenol

Single Answer

111Which one of the following is more acidic?( )H2O

( )CH3CH2CH2OH

( )C2H5OH

( )CH3OH

Single Answer

112Phenol can be distinguished from ethyl alcohol by all reagent except( )FeCl3

( )Na

( )Br2/H2O

( )NaOH

Single Answer

113Which one of the following is not soluble in H2SO4?( )C4H10

( )H2O

( )Ether

( )C2H5OH

Single Answer

114Bond angle in ether is

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115Ether have boiling point higher than alkanes but lower than alcohol because( )Ethers possess H-bonds and are polar

( )Neither they have H-bonds nor are polar

( )Ethers do not possess H-bonds and are non polar

( )Ethers are polar but do not have H-bonds

Single Answer

116Water gas in presence of excess of H2 at 450C, 200 atm pressure and in the presence of ZnO + Cr2O3 catalyst gives( )Methanal

( )Carbonic acid

( )Methanol

( )Ethanol

Single Answer

117Alcohol of 50 "proof" is( )100% pure

( )70% pure

( )50% pure

( )80% pure

Single Answer

118Which one of the following undergoes dehydration with ease?( )CH3-OH

( )C2H5OH

( )Ter.butyl alcohol

( )Isopropyl alcohol

Single Answer

119Which of the following is more reactive towards sodium metal?( )Primary alcohol

( )Tertiary alcohol

( )Ether

( )Secondary alcohol

Single Answer

120Which one of the following is more soluble in water?( )Butanol

( )Heptanol

( )Methanol

( )Hexanol

Single Answer

121Which of the following undergoes estrification with ease?( )Ter.butyl alcohol

( )C2H5OH

( )Isopropyl alcohol

( )Ter.pentyl alcohol

Single Answer

122The reagent used to distinguish primary, secondary and tertiary alcohols is( )Nessseler's reagent

( )Baeyer's reagent

( )Tollen's reagent

( )Lucas reagent

Single Answer

123Which one of the following compounds does not liberate CO2 in reaction with Na2CO3?( )H2SO4

( )Phenol

( )HNO3(dil)

( )HCl (dil)

Single Answer

124The most acidic among the following is( )Methanol

( )Ether

( )Acetylene

( )Phenol

Single Answer

125The alcohol which resists oxidation is( )Methanol

( )Ethanol

( )Isopropyl alcohol

( )Ter.butyl alcohol

Single Answer

126The least reactive compound among the following is( )H-CO-H

( )CH3-O-CH3

( )CH3COOH

( )CH3OH

Single Answer

127Detol is a very effective antiseptic. It is a derivate of( )Ether

( )Alcohol

( )Ketone

( )Phenol

Single Answer

128The compound which does not form iodoform( )Acetone

( )Methyl alcohol

( )Ethyl alcohol

( )Acetaldehyde

Single Answer

129In estrification, which bond of alcohol undergoes cleavage?( )C-H

( )C-O

( )O-H

( )C-C

Single Answer

130Which of the following does not undergo dehydration reaction?( )Propanol

( )Ethanol

( )Butanol

( )Methanol

Single Answer

131Methylated spirit is ethyl alcohol to which _____% methanol has been added.( )50

( )10

( )20

( )70

Single Answer