Step 1: Identifying functional groups.
The >C=O group is a carbonyl group, found in compounds like esters, amides, and acyl halides.
Step 2: Analyzing the options.
(A) Ether: Correct — Ether does not contain a carbonyl group (>C=O).
(B) Ester: Esters contain a carbonyl group (RCOOR).
(C) Amide: Amides contain a carbonyl group (RCONH₂).
(D) Acyl halide: Acyl halides contain a carbonyl group (RCOCl).
Step 3: Conclusion.
The correct answer is (A) Ether, as it does not contain a carbonyl group.
Method used for separation of mixture of products (B and C) obtained in the following reaction is: 