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Benzene on treatment with a mixture of c...

Benzene on treatment with a mixture of conc. `HNO_(3)` and con. `H_(2)SO_(4)` at 373K gives

A

nitrobenzene

B

m-dinitrobenzene

C

p -dinitrobenzene

D

o-dinitrobenzene

Text Solution

Verified by Experts

The correct Answer is:
B
At `60^@C` (low temperature) mononitration occurs and nitrobenzene is obtained but at `100^@C`, nitrobenzene further undergoes electrophilic substitution and gives mdininitrobenzene (as-`NO_2` is a meta- directing group)
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ORGANIC COMPOUNDS CONTAINING NITROGEN -MHT CET CORNER
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