Product $A$ in the reaction will be:

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

Identify the reaction shown in the image:
$C_6H_5CN \xrightarrow[(ii) H_3O^+]{(i) SnCl_2 + HCl} C_6H_5CHO$

Which,if any,of the following pairs of reagents could be used to prepare $2$-phenyl-$2$-butanol?

Which of the following substances will give a ketone upon reaction with a Grignard reagent?

Consider the following reactions:
$C_2H_2 + H_2O \xrightarrow[333 \ K]{Hg^{2+} / H^{+}} [X] \stackrel{\text{Isomerisation}}{\rightleftharpoons} Y$
$Y$ cannot be obtained from which of the following reactions?