BITSAT Chemistry Alcohols Phenols and Ethers MCQs

Question:

a)

b)

c)

d)

Answer:

Question: Which of the following method gives better yield of p-nitrophenol?

a)

b)

c)

d)

None of the three

Answer:

Question: Sodium salt of benzene sulphonic acid on fusion with caustic soda gives

a) Benzene

b) Phenol

c) Thiophenol

d) Benzoic acid

Answer: Phenol

Question: Consider the following phenols :

The decreasing order of acidity of the above phenols is

a) III > IV > II > I

b) II > I > IV > III

c) I > IV > II > III

d) III > IV > I > II

Answer: III > IV > II > I

Question: The ionization constant of phenol is higher than that of ethanol because :

a) Phenoxide ion is bulkier than ethoxide

b) Phenoxide ion is stronger base than ethoxide

c) Phenoxide ion is stabilized through delocalization

d) Phenoxide ion is less stable than ethoxide

Answer: Phenoxide ion is stabilized through delocalization

Question: Which of the following is not the product of dehydration of 

a)

b)

c)

d)

Answer:

More Questions.............................

Question: The compound which reacts with bleaching powder to produce chloroform is

a) Methanol

b) Methyl formate

c) Ethanol

d) Methyl chloride

Answer: Ethanol

Question: The reaction 

is called :

a) Williamson continuous etherification process

b) Etard reaction

c) Gatterman - Koch reaction

d) Williamson Synthesis

Answer: Williamson Synthesis

Question: Match List I (Reaction) with List II (Reagent) and select the correct answer using the codes given below the lists :

a) I-A, II-B, III-C, IV-B

b) I-D, II-C, III-A, IV-B

c) I-C, II-D, III-A, IV-B

d) I-B, II-A, III-D, IV-C

Answer: I-C, II-D, III-A, IV-B

Question: Which of the following will not form a yellow precipitate on heating with an alkaline solution of iodine?

a) CH₃CH(OH)CH₃

b) CH₃CH₂CH(OH)CH₃

c) CH₃OH

d) CH₃CH₂OH

Answer: CH₃OH

Question: Lucas reagent is

a) Conc. HCl + ZnCl₂

b) Dil. HCl + ZnCl₂

c) H₂SO₄ + ZnCl₂

d) Conc. HCl + Zn

Answer: Conc. HCl + ZnCl₂

Question: Phenol is distilled with Zn dust followed by Friedel Crafts alkylation with propyl chloride in the presence of AlCl₃ to give a compound (B). (B) is oxidised in the presence of air to form the compound (C). The structural formula of (C) is

a)

b)

c)

d)

Answer:

Question: In the reaction:

Which of the following compounds will be formed?

a)

b)

c)

d)

Answer:

Question: 3-methyl-2-butanol on treatment with HCl gives predominantly :

a) 2-Chloro-2-methyl butane

b) 2-Chloro-3-methyl butane

c) 2, 2-Dimethyl pentane

d) None of above

Answer: 2-Chloro-3-methyl butane

Question: The compound which reacts with bleaching powder to produce chloroform is

a) Methanol

b) Methyl formate

c) Ethanol

d) Methyl chloride

Answer: Ethanol