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Which of the following act as catalysis in the nitration of benzene?

Which of the following act as catalysis in the nitration of benzene? Correct Answer Conc. H2SO4

Conc. H2SO4 act as a catalysis in the nitration of benzene. Benzene is treated with a mixture of concentrated nitric acid and concentrated sulphuric acid at a temperature not exceeding 50°C.

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