MCQs - Set IV - Alcohols

MCQs Set IV 

Alcohols

(1) Phenol on nitration gives:-

(a)  Salicylic acid

(b) Benzoic acid

(c)  Picric acid

(d) Barbaturic acid

(2) Which of the following reagents will give 1-Propanol on hydration of Propene :-

(a)  Aq. KOH

(b) H₂O/H⁺

(c)  Alc KOH

(d) B₂H₆/H₂O₂/OH^-

(3) Which of the following products are formed when Glycerol is heated with oxalic acid at 260^oC:-

(a)  Allyl alcohol

(b) Formic acid

(c)  Dioxane

(d) Propene

(4) Which of the following alcohols will give immediate turbidity with Lucas reagent:-

(a)  1-Butanol

(b) 2-Butanol

(c)  2-Methyl-2-Propanol

(d) 2-Methyl-1-Propanol

(5) Phenol on reaction with Chloroform and aqueous KOH gives:-

(a)  Salicylic acid

(b) Salicylaldehyde

(c)  Picric acid

(d) Acetyl Salicylic acid

(6) Which one of the following will not show Iodoform test:-

(a)  Ethanol

(b) 2-Propanol

(c)  1-Propanol

(d) 2-Butanol

(7) Methanoic acid and ethyl alcohol on esterification give:-

(a)  Ethyl ethanoate

(b) Methyl ethanoate

(c)  Ethyl methanoate

(d) Methyl methanoate

(8) Ethyl alcohol on reaction with Methyl magnesium bromide gives:-

(a)  Ethane

(b) Methane

(c)  Propane

(d) Butane

(9) Which of the following reagents is used to obtain Ethyl alcohol from Ethyl amine:-

(a)  PCl₅

(b) NH₃

(c)  HNO₂

(d) AgNO₃

(10)  Which one of the following will produce a primary alcohol with Methyl magnesium bromide:-

(a)  Methanal

(b) Ethanal

(c)  Acetone

(d) Propanal

(11)  Chlorine reacts with ethanol to give:-

(a)  Chloroform

(b) Chloral

(c)  Chloroethane

(d) Butane

(12)  Compound with highest boiling point is :-

(a)  Ethane

(b) Ethanol

(c)  Ethanal

(d) Methane

(13)  A compound ‘X’ with molecular formula C₃H₈O is oxidised to ‘Y’ with molecular formula C₃H₆O₂. X is likely to be:-

(a)  A primary alcohol

(b)  A secondary alcohol

(c)  An aldehyde

(d) A Ketone

(14)  Phenol reacts with bromine in CS₂ at low temperatures to give:-

(a)  2,4,6 Tribomophenol

(b) p-Bromophenol

(c)  m-Bromophenol

(d) Bromobenzene

(15)  Glycerol on heating with KHSO₄ gives:-

(a)  Allyl alcohol

(b) Acrolein

(c)  Propyl alcohol

(d) Acetone

(16)  Phenol is less acidic than:-

(a)  Ethanol

(b) Cresol

(c)  Methanol

(d) Nitrophenol

(17)  The enzyme which converts monosacharrides to ethyl alcohol is :-

(a)  Invertase

(b) Zymase

(c)  Maltase

(d) Diastase

(18)  Lucas reagent is:-

(a)  Ammoniacal Silver nitrate

(b) ZnCl₂/Conc HCl

(c)  I₂/NaOH

(d) 1% CuSO₄

(19)  Which of the following process does not occur during the preparation of Chloroform from ethanol and bleaching powder:-

(a)  Hydrolysis

(b) Oxidation

(c)  Chlorination

(d) Elimination

(20)  When chlorobenzene is treated with aq. NaOH at high temperature and pressure, the major product is:-

(a)  Benzene

(b) Benzyl alcohol

(c)  Sodium phenoxide

(d) Benzoic acid

MCQs - Set III - Alkyl halides

     

Alkyl Halides

(1)   Ethyl bromide on reaction with AgCN gives:-

a.      Ethane nitrile

b.     Ethyl carbylamine

c.      Methane nitrile

d.     Methyl isocyanide

(2)   When Chloromethane underdoes Wurtz reaction, the major product is :-

a.      Methane

b.     Ethane

c.      Propane

d.     Butane

(3)   Chlorobenzene on reaction with sodium hydroxide at high temperature and pressure, gives:-

a.      Sodium phenoxide

b.     Phenol

c.      Benzene

d.     Benzoic acid

(4)   When chlorobenzene reacts with chloral in presence of Conc. H₂SO₄, the major product is:-

a.      Benzene hexachloride

b.     Phenol

c.      DDT

d.     Phenolphthalein

(5)   Nitration of chlorobenzene gives:-

a.      m-Nitrochlorobenzene

b.     p- Nitrochlorobenzene

c.      Nitrobenzene

d.     Aniline

(6)   Methyl amine reacts with chloroform in presence of alcoholic KOH to give:-

a.      Methyl isocyanide

b.     Methyl cyanide

c.      Ethyl carbylamine

d.     Ethyl cyanide

(7)   Chloroform is stored in dark bottles filled upto the brim to prevent the oxidation of chloroform to give:-

a.      Carbon tetra chloride

b.     Phosgene

c.      Methylene dichloride

d.     Chloropicrin

(8)   Propene on reaction with HCl in presence of peroxides gives:-

a.      2-Chloropropane

b.     1-Chloropropane

c.      Propane

d.     1,2-Dichlorpropane

(9)   Which of the following compounds will not give a positive Iodoform test:-

a.      Ethyl alcohol

b.     Ethanoic acid

c.      Ethanal

d.     Propanone

(10)    Ethyl chloride when heated with sodium in presence of dry ether gives:-

Identify the product ‘C’ in the following reaction:-

a.      Formic acid

b.     Methyl amine

c.      Chloromethane

d.     Ethanoic acid

(11)       When methyl bromide reacts with magnesium in presence of dry ether,the product obtained is:-

a.      Lucas reagent

b.     Hinsberg reagent

c.      Grignard reagent

d.     Tollen’s reagent

(12)       Alkaline hydrolysis of Chloroform with aq KOH gives:-

a.      Methyl alcohol

b.     Acetaldehyde

c.      Potassium formate

d.     Dichloromethane

(13)       Nitration of chloroform gives a poisonous gas called:-

a.      Phosgene

b.     Chloropicrin

c.      Mustard gas

d.     Carbon monoxide

(14)       Acetone reacts with chloroform to give a hypnotic liquid called:-

a.      Chloretone

b.     Chloral

c.      Iodoform

d.     Chloropicrin

(15)       Ethyl bromide reacts with Sodium ethoxide to give:-

a.      Ethoxy ethane

b.     Methoxy ethane

c.      Butane

d.     Butanone

(16)       Sodium acetylide reacts with Methyl chloride to give :-

a.      2-Butene

b.     1-Butene

c.      2-Butyne

d.     1-Butyne

(17)       An alkyl halide contains 65% bromine. On reaction with aq. KOH it gives an alcohol which gives positive Iodoform test. The alkyl halide is:-

a.      Ethyl bromide

b.     2- Bromopropane

c.      2-Bromobutane

d.     1-Bromopropane

(18)       Which of the following compounds react with alkyl halides to gives nitroalkanes:-

a.      Sodium nitrite

b.     Silver nitrite

c.      Conc. Nitric

d.     Nitrating mixture

(19)       2-Chlorobutane on reaction with alcoholic KOH gives:-

a.      1-Butanol

b.     2-Butanol

c.      2-Butene

d.     1-Butene

(20)       Alkyl halides undergo:-

a.      Electrophilic addition

b.     Nucleophilic substitution

c.      Nucleophilic addition

d.     Electrophilic substitution