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Which of the following is added to the tetrahedral intermediate when it reacts with a proton from the reaction medium?

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in Chemistry – Class 12 by (188k points)
Which of the following is added to the tetrahedral intermediate when it reacts with a proton from the reaction medium?

(a) Nu^–

(b) H^+

(c) Both Nu^– and H^+

(d) OH^–

The question was asked during an internship interview.

My question is from Aldehydes and Ketones Chemical Reactions in division Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

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Right choice is (b) H^+

The explanation is: A H+ proton is added to the negative O atom of the alkoxide intermediate to form an electrically neutral addition product. The Nu^– is added in the first step itself when it attacks the electrophilic carbon centre in a slow step.

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