InterviewSolution
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InterviewSolution
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During nitration of benzene withnitrating mixture, `HNO_(3)` acts asA. an acidB. a baseC. catalystD. reducing agent |
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Answer» Correct Answer - c Electrophilic substitution reactions involve two steps, cleavage of the `C-H` or `C-D` step `(i.e.` proton elimination `)` take place in the second `(` fast `)` step, which being fast does not affect the rate of reaction. The first `(` slow `)` step is the formation of carbocation in chis `C-H` or `C-D` bond is not affected. Thus absence of isotopic effect establishes the two `-` steps mechanism for electrophilic armaic substitution in which formation of carbocation `(` first step `)` is rate determining step. |
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