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

Which of the following is added to the tetrahedral intermediate when i

1.	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
Answer» 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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