1.

Which of the following sequence of reactions (reagent ) can be used for the conversion of C_6H_5CH_2CH_3 into C_6H_5CH=CH_3

Answer»

`SOCl_2 , H_2O`
`SO_2Cl_2 , alc.KOH`
`Cl_2//hv , H_2O`
`SOCl_2` , alc. KOH

Solution :`SO_2Cl_2` causes free radical SUBSTITUTION at benzylic position and alc. KOH causes elimination


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