Question

Statement-I: Two different aldehydes on cross aldol condensation always give four products.
Statement-II: Among benzaldehyde and acetophenone, only acetophenone reacts with semicarbazide.

• A. Statement-I and Statement-II both are correct
• B. Statement-I is incorrect, Statement-II is correct
• C. Statement-I is correct, Statement-II is incorrect
• D. Statement-I and Statement-II both are incorrect

Hint:

All aldehydes and ketones react with semicarbazide, irrespective of $\alpha$-hydrogen.

Answer 1

The Correct Option is C

Statement-I Analysis:
If both aldehydes possess $\alpha$-hydrogen, then cross aldol condensation can give four products.
If only one aldehyde has $\alpha$-hydrogen, then only three products are formed.
Hence, Statement-I is correct.
Statement-II Analysis:
Both benzaldehyde and acetophenone contain carbonyl group and react with semicarbazide to form semicarbazones.
Thus, Statement-II is incorrect.