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Question

Benzene is converted to nitrobenzene by a mixture of sulphuric acid and nitric acid. What is the catalyst for this reaction?

A
the nitronium ion
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B
water
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C
sulphuric acid
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D
nitric acid
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Solution

The correct option is C sulphuric acid
In nitration of benzene, sulphuric acid is used as catalyst and it forms nitronium ion which attacks on benzene ring and nitrobenzene forms.
Mechanism of reaction:

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