AIPMT PRELIMS 2009 Chemistry Nitration MCQ Question with Solution

Nitrobenzene can be prepared from benzene by using a mixture of conc. HNO₃ and conc. H₂SO₄ in the mixture, nitric acid acts as a/an:

A

acid

B

base

C

catalyst

D

reducing agent

Option B

Nitric acid acts as a base by accepting a proton from sulfuric acid, which is a stronger acid.

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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?

Which one of the following depresses brain activity and produces feelings of calmness, relaxation and drowsiness?