LIST – I Conversion		LIST – II Process involved
A)	Benzene → Toluene	I)	Hydration
B)	Acetylene → Ethylene	II)	Controlled hydrogenation
C)	Ethylene → Formaldehyde	III)	Hydrogenation
D)	Benzene → Cyclohexane	IV)	Ozonolysis
		V)	Alkylation

The correct match is

	(A)	(B)	(C)	(D)
1)	V	III	IV	I
2)	V	II	IV	III
3)	III	I	V	IV
4)	IV	V	III	II

Benzene to Toluene(Friedal craft's reaction)

${\mathrm{C}}_6{\mathrm{H}}_6 +{\mathrm{CH}}_3\mathrm{Cl}\stackrel{\mathrm{Anhydrous} {\mathrm{AlCl}}_3}{\to } {\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_3 +\mathrm{HCl}$

Acetylene to Ethylene ( controlled hydrogination)

${\mathrm{C}}_2{\mathrm{H}}_2 +{\mathrm{H}}_2\stackrel{\mathrm{Lindlars} \mathrm{catalyst}}{\to }{\mathrm{C}}_2{\mathrm{H}}_4$

Ethylene to Formaldehyde (ozonolysis)

${\mathrm{C}}_2{\mathrm{H}}_4 +{\mathrm{O}}_3\stackrel{{\mathrm{H}}_2\mathrm{O}/\mathrm{Zn}}{\to } 2\mathrm{HCHO}$

Benzene  to Cyclohexane (Addition)

${\mathrm{C}}_6{\mathrm{H}}_6 +3{\mathrm{H}}_2 \underset{25 \mathrm{atm},150-250{}^0\mathrm{c}}{\overset{\mathrm{Ni}}{\to }} {\mathrm{C}}_6{\mathrm{H}}_{12}$