Question

Find A

• A. A
• B. B
• C. C
• D. D

Hint:

Ethyl acetoacetate exists as mixture of keto and enol forms (tautomerism).

Answer 1

The Correct Option is C

Step 1: Concept:
Claisen condensation of ethyl acetate gives ethyl acetoacetate (β-ketoester).
Step 2: Explanation:
A = CH\(_3\)COCH\(_2\)COOC\(_2\)H\(_5\) (ethyl acetoacetate).
(A) Has C=O group \(\rightarrow\) forms oxime.
(B) Has α-hydrogens \(\rightarrow\) keto-enol tautomerism.
(C) Has CH\(_3\)CO- group (methyl ketone) \(\rightarrow\) iodoform test positive.
Thus, all statements true.
Step 3: Conclusion:
Thus, all of the above are true.