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Match the industrial processes in $Group–I$ with the catalyst materials in  $Group–2$.

$\begin{array}{cc}\\ \\
&\text{Group-1} & \text{Group-2} \\ 
&\text{P. Ethylene polymerisation} & \text{ I. Nickel} \\ 
&\text{ Q. Petroleum feedstock cracking} & \text{II. Vanadium pentoxide} \\ 
&\text{R. Oxidation of $SO_{2}$ to $SO_{3}$} & \text{III. Zeolite}\\  &\text{S. Hydrogenation of oil} & \text{IV. Aluminium triethyl with titanium chloride promoter} \\ \\ \end{array}$

  1. $P-IV$, $Q-III$, $R-II$, $S-I$
  2. $P-I$, $Q-IV$, $R-III$, $S-II$
  3. $P-I$, $Q-II$, $R-III$, $S-IV$
  4. $P-II$, $Q-III$, $R-IV$, $S-I$
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