$C_6H_6 + CO + HCl \xrightarrow{\text{Anhy. } AlCl_3} X + HCl$. Compound $X$ is

Identify the reagent used for Rosenmund reduction.

Which of the following is used to convert olefins into aldehydes?

Identify product $B$ in the following reaction:
Benzonitrile $\xrightarrow[\text{Dry ether}]{C_6H_5MgBr} A$ $\xrightarrow{H_3O^{+}} B$

What is the product formed when side chain chlorination of toluene is carried out followed by acid hydrolysis at $373 \ K$?

Match the reactants in column $-I$ with the reaction conditions in column $-II$ to find the corresponding products in column $-III$.

Column $-I$ (Reactant)	Column $-II$ (Reaction Condition)	Column $-III$ (Product)
$A$. $CH_3CN + C_6H_5MgBr$	$i$. $Ether, H_3O^+$	$p$. Benzaldehyde
$B$. $Benzene + CH_3COCl$	$ii$. $Hg^{2+}, H_2SO_4, H_2O$	$q$. Acetophenone
$C$. $Toluene$	$iii$. $Anhydrous AlCl_3$	$r$. Propiophenone
$D$. $Phenyl ethyne$	$iv$. $x. Cl_2, hv$; $y. H_2O, 373 \ K$	$s$. Acetaldehyde