Which of the following compounds gives the Iodoform reaction?

In the given reactions,which one is $INCORRECT$?

In the given reaction,
$Cyclohexanone \xrightarrow[(ii) \text{ heat}]{(i) \text{ } OH^-} 'P'$
The number of $\pi$ electrons present in the product $'P'$ is $....$

The product $(P)$ is formed by the reaction of cyclohexanone with $2$ equivalents of ethanol in the presence of an acid catalyst. The reaction is given as:
Cyclohexanone $+ 2EtOH \xrightarrow{H^+} (P)$
Product $(P)$ is:

Which of the following does not respond to Fehling's solution test and haloform reaction but shows Cannizzaro's reaction?

The major product of the following reaction sequence is