1.

`C_(6)H_(5)-CH=CHCHO overset(x)to C_(6)H_(5)CH=CHCH_(2)OH`. In the above sequence X can beA. `H_(2)`/NiB. `NaBH_(4)`C. `K_(2)Cr_(2)O_(7)//H^(+)`D. Both (a) and (b)

Answer» Correct Answer - B
`NaBH_(4)` and `LiAIH_(4)` attacks only carbonyl group and reduce it into alcohol group. They do not attack on double bond.
`underset("cinnamic aldehyde")(C_(6)H_(5)-CH=CHCHO)overset(NaBH_(4))to C_(6)H_(5)-underset("cinnamicalcohol")(CH=CH.CH_(2)OH)`


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