Question

Identify \(P\) and \(Q\) respectively of the following reaction

• A. 1
• B. 2
• C. 3
• D. 4

Hint:

Any compound containing the methyl ketone group \[ RCOCH_3 \] gives a positive iodoform test with \(\mathrm{I_2/NaOH}\) or \(\mathrm{NaOI}\), producing \[ RCOO^-Na^+ \] and yellow crystals of \[ CHI_3. \]

Answer 1

The Correct Option is D

Step 1: Identify the reaction type -- iodoform reaction.
A methyl ketone (R-CO-CH\(_3\)) reacts with NaOI (iodine + NaOH) in the iodoform reaction to give CHI\(_3\) (iodoform) and RCOONa. P = iodoform (CHI\(_3\)), Q = the carboxylate salt.

Step 2: Match the products to option 4.
The cyclohexene-methyl ketone gives cyclohexene carboxylate (Q) and CHI\(_3\) (P). The images correspond to option 4. \[ oxed{4} \]