Question

Cannizzaro reaction is given by

• A. HCHO
• B. CH\(_3\)COCH\(_3\)
• C. CH\(_3\)CHO
• D. CH\(_3\)CH\(_2\)OH

Hint:

Cannizzaro reaction occurs only in aldehydes without \(\alpha\)-hydrogen, like HCHO and C\(_6\)H\(_5\)CHO.

Answer 1

The Correct Option is A

Step 1: Condition for Cannizzaro reaction.
Cannizzaro reaction is shown by aldehydes that do not have alpha hydrogen.
Step 2: Check each option.
(A) HCHO (formaldehyde) has no alpha hydrogen because it has no carbon chain.
So it undergoes Cannizzaro reaction.
(C) CH\(_3\)CHO has alpha hydrogens, so it undergoes aldol reaction instead.
Others are not aldehydes.
Step 3: Conclusion.
Hence HCHO gives Cannizzaro reaction.
Final Answer:
\[ \boxed{\text{(A) HCHO}} \]