The major products obtained from the reactions in list -II are the reactants for the named  reactions mentioned in list-I match list-I and list -II and choose the correct answer

	List- I		List- II
P)	Rosenmund’s reduction	1)	$C_2{H}_2\underset{Fetubes}{\overset{\mathrm{Re}dhot}{\to }}$
Q)	Beckman’s rearrangement	2)	$C{H}_3-COOH\stackrel{PC{l}_5}{\to }$
R)	Etard reaction	3)
S)	Gattermann -koch reaction	4)
		5)	$C_2{H}_2\underset{\begin{array}{l}Fetube\\ 2)C{H}_3-Cl/AlC{l}_3\end{array}}{\overset{1)Redhot}{\to }}$

1. Conversion of Acetylene to Benzene

Reaction:C2H2 (acetylene) undergoes polymerization using a red-hot iron tube to form benzene (C6H6).

2. Conversion of Acetic Acid to Acetyl Chloride

Reaction:CH3COOH (acetic acid) reacts with PCl5 (phosphorus pentachloride) to produce acetyl chloride (CH3COCl).

3. Beckmann Rearrangement

Reaction: Cyclohexanone reacts with hydroxylamine (NH2OH) in the presence of acid (H+) to form an oxime intermediate (C=N-OH). The oxime undergoes the Beckmann rearrangement to form caprolactam (not fully shown in this reaction pathway).

4. Conversion of Benzonitrile to Benzoyl Chloride

Reaction: Benzonitrile (C6H5CN) undergoes hydrolysis in the presence of acid (H3O+) and then reacts with SOCl2 (thionyl chloride) to form benzoyl chloride (C6H5COCl).

5. Methylation of Benzene

Reaction: Benzene (C6H6), obtained from acetylene polymerization, reacts with methyl chloride (CH3Cl) in the presence of aluminum chloride (AlCl3) as a catalyst (Friedel-Crafts alkylation) to produce toluene (C6H5CH3).