AIPMT Prelims 2004 Chemistry Alcohols and Phenols MCQ Question with Solution

The –OH group of an alcohol or the carboxylic acid can be replaced by –Cl, using :-

A

Hypochlorous acid

B

Chlorine

C

Hydrochloric acid

D

Phosphorous pentachloride

Option D

Phosphorous pentachloride (PCl₅) is commonly used to replace –OH groups with –Cl in alcohols and carboxylic acids.

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CH₃OC₂H₅ and (CH₃)₃C – OCH₃ are treated with concentrated acidic iodide. The fragments after reactions obtained are

Arrange the following alkyl halides in decreasing order of the rate of β-elimination reaction with alcoholic KOH.

What happens when a carboxylic acid is treated with lithium aluminium hydride?

Assertion : A transistor amplifier in common emitter configuration has a low input impedence. Reason : The base to emitter region is forward biased.

AIPMT PRELIMS 2004 Chemistry Alcohols and Phenols MCQ Question