Alcohols, Phenols and Ethers: MCQs Test

Topic: Alcohols, Phenols and Ethers, Test No.: 03, Total MCQs: 10

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Question 1

n-propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent:

A	PCl₅
B	Reduction
C	Oxidation with Potassium dichromate
D	Ozonolysis

Question 2

Williamson's synthesis is used for the preparation of

A	Alcohols
B	Ketones
C	Ethers
D	Aldehydes

Question 3

Which one of the following gases is liberated when ethyl alcohol is heated with methyl magnesium iodide?

A	Methane
B	Ethane
C	Carbon dioxide
D	Propane

Question 4

Phenol can be converted to o-hydroxybenzaldehyde by

A	Kolbe's reaction
B	Reimer-Tiemann reaction
C	Wurtz reaction
D	Sandmeyer's reaction

Question 5

Phenol can be distinguished from ethanol by the following reagents except

A	sodium
B	NaOH/I₂
C	neutral FeCl₃
D	Br₂/H₂O

Question 6

Phenol is heated with a solution of mixture of KBr and KBrO₃ . The major product obtained in the above reaction is:

A	2, 4, 6-Tribromophenol
B	2-Bromophenol
C	3-Bromophenol
D	4-Bromophenol

Question 7

Phenol, when it first reacts with concentrated sulphuric acid and then with concentrated nitric acid, gives

A	2,4,6-trinitrobenzene
B	o-nitrophenol
C	p-nitrophenol
D	nitrobenzene

Question 8

RCH₂CH₂OH can be converted to RCH₂CH₂COOH by the following sequence of steps

A	KNC, H₃O⁺
B	PBr₃, KNC, H₂/P⁺
C	PBr₃, KNC, H₃O⁺
D	HCN, PBr₃, H₃O⁺

Question 9

The best method to prepare cyclohexene from cyclohexanol is by using

A	HBr
B	conc. H₃PO₄
C	conc. HCl + ZnCl₂
D	conc. HCl

Question 10

The compound on dehydrogenation gives a ketone. The original compound is

A	tertiary alcohol
B	secondary alcohol
C	primary alcohol
D	carboxylic acid

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Alcohols, Phenols and Ethers: MCQs Test – 3 1

Topic: Alcohols, Phenols and Ethers, Test No.: 03, Total MCQs: 10

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