Addition of alcohols to aldehydes in the presence of anhydrous acids yields:

Identify the set in which $X$ and $Y$ are correctly matched for the reaction of benzaldehyde with a reagent $X$ to form product $Y$.

The following reaction gives:

Match the following reactions in Column-$1$ with their products in Column-$2$.

Column-$1$ (Reaction)	Column-$2$ (Product)
$A$. Benzaldehyde + $Zn-Hg/HCl$	$I$. Cyclohexanol
$B$. Benzoyl chloride + $H_2/Pd-BaSO_4$	$II$. Benzyl alcohol
$C$. Cyclohexanone + $NH_2NH_2/KOH$	$III$. Toluene
	$IV$. Benzaldehyde
	$V$. Cyclohexane

The correct match is:

The major product $Q$ of the following reaction scheme is:

An organic compound $x$ where the molar ratio of $C$,$O$,and $H$ are equal,on treatment with $50\% \ KOH$ under reflux followed by acidification produced $y$. The most likely structure of $y$ is: [Molar mass of $x$ is $58 \ g \ mol^{-1}$]