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During nitration of benzene with a mixture of concentrated nitric aciid and concentrated sulphuric acid, nitric acid acts as a base. Explain. |
Answer» Solution :Both `HNO_(3) and H_(2)SO_(4)` are strong acids but `H_(2)SO_(4)` is a stronger acid than `HNO_(3)`. Therefore, during nitration, `H_(2)SO_(4)` acts as an acid RELEASING a proton. `HNO_(3)`, on the other hand, accepts this proton and thus acts as a base. the protonated NITRIC acid then loses a proton to form nitronium ION which then brings about the nitration.  .
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