Question Detail

CHM 102 Carbonyl Compounds Objective Question
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Question

What is the Cannizzaro reaction?
Options
A Oxidation of a primary alcohol to aldehyde
B Disproportionation of an aldehyde without α-hydrogens in concentrated base to an alcohol and a carboxylic acid
Correct Answer
C Reduction of a ketone to alcohol
D Addition of Grignard to carbonyl
Correct Answer

Option B is the correct answer.

Detailed Explanation

The Cannizzaro reaction: aldehydes with no α-hydrogens (e.g., formaldehyde, benzaldehyde) undergo disproportionation in concentrated base to give an alcohol and a carboxylic acid salt.

Hint

Alone → alcohol + acid.

Question Info

Course: CHM 102
Topic: Carbonyl Compounds
Type: Objective
Difficulty: Not specified
Question 653 of 1999
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