1.

During the conversion: C_(6)H_(5)CH_(2)CH_(3)overset((a))rarrXoverset((b))rarrC_(6)H_(5)CH=CH_(2) the reagents (a) and (b) are respectively

Answer»

`SOCl_(2)`, alc. KOH
`Cl_(2)//HV, H_(2)O`
`SO_(2)Cl_(2)`, aq. KOH
`SO_(2)Cl_(2)`, alc. KOH

SOLUTION :`C_(6)H_(5)CH_(2)CH_(3)underset(-SO_(2),-HCl)overset(SO_(2)Cl_(2)(a))rarrC_(6)H_(5)underset(Cl)underset(|)(C)HCH_(3)underset(-HCl)overset("alc. KOH(b)")rarrC_(6)H_(5)CH=CH_(2)`


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