$A$ catalyst is a substance which

Match List-$I$ with List-$II$.

List-$I$ (Process)	List-$II$ (Catalyst)
$a$. Deacon's process	$i$. $ZSM-5$
$b$. Contact process	$ii$. $CuCl_2$
$c$. Cracking of hydrocarbons	$iii$. $Ni$
$d$. Hydrogenation of vegetable oils	$iv$. $V_2O_5$

Choose the most appropriate answer from the options given below:

In this reaction,dilute $H_2SO_4$ is called
$\underset{\text{Sucrose}}{\mathop{C_{12}H_{22}O_{11}}}+H_2O$ $\xrightarrow{dil. H_2SO_4}\underset{\text{Fructose}}{\mathop{C_6H_{12}O_{6(aq)}}}+\underset{\text{Glucose}}{\mathop{C_6H_{12}O_{6(aq)}}}$

Which of the following kinds of catalysis can be explained by the adsorption theory?

Protons accelerate the hydrolysis of esters. This is an example of

Which catalyst is used in the reaction $2KClO_3 \to 2KCl + 3O_2$?