Phenol MCQ B.Sc. Second year UG degree course Semester Third Organic Chemistry paper VII (Part-1)

Resonance January 03, 2022

B.Sc. Second year Undergraduate degree course Semester Third Organic Chemistry paper VII

Chapter – Phenol

Multiple Choice questions

1. Sodium benzene sulphonate reacts with NaOH and then on acidic hydrolysis, it gives which of the following compound?
a) Phenol
b) Benzoic acid
c) Benzene
d) Disodium benzaldehyde

2. Reaction of aqueous sodium hydroxide onchlorobenze- ne gives which of the following products?
a) o-chlorophenol
b) o-chlorophenol
c) phenol
d) no reaction

3. What is the reagent which will react with cumene to give phenol?
a) Oxygen
b) Hydrogen
c) Nitrogen
d) Ozone

4. Which of the following is not a method for preparation of phenol?
a) Dows process
b) From diazonium salt
c) By decarboxylation of salicylic acid
d) By the decarboxylation of sodium benzoate

5. Phenol is obtained by heating aqueous solution of which of the following?
a) Aniline
b) Benzene diazonium chloride
c) Benzoic acid
d) Benzyl alcohol

6. Phenol undergoes ionization to become more stable by reacting with which of the following chemical species?
a) Negative ions
b) positive ions
c) radicals
d) neutral atoms

7.Preperation of phenol from aryl halides the process is called as—

a) Kolbes process

b) Dows process

c)Gatterman process

d) None of these

8.Cumene is called as

a)Benzoyl benzene

b) Isopropyl benzene

c) Propyl benzene

d) Butyl benzene

9.Phenol is compound which possess….

a)Antipyretic property