Question

(ii)

Answer 1

Cyclohex-2-en-1-one 2,4-dinitrophenylhydrazone

Answer 2

The given figure represents a chemical compound which is a derivative of a carbonyl compound and 2,4-dinitrophenylhydrazine. The left part of the molecule is a six-membered ring with a double bond within the ring, and a carbon atom from the ring is double-bonded to a nitrogen atom. This indicates that the original carbonyl compound was cyclohex-2-en-1-one. The right part of the molecule is a 2,4-dinitrophenyl group attached to the nitrogen atom. Therefore, the compound is the hydrazone formed from cyclohex-2-en-1-one and 2,4-dinitrophenylhydrazine.

This compound is a type of 2,4-dinitrophenylhydrazone, which is a derivative of a carbonyl compound. These derivatives are commonly used to identify the presence of aldehydes and ketones, as they often form colored crystalline precipitates.