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C6H5CH=CHCHOXC6H5CH=CHCH2OH. In the above sequence X can be

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By Expert Faculty of Sri Chaitanya
a
H2/Ni
b
K2Cr2O7/H+
c
NaBH4
d
Both (1) and (3)

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detailed solution

Correct option is C

NaBH4 and LiAH4 attack only carbonyl group and reduce it into alcohol group. They do not attack on double bond.C6H5−CH=CHCHOcinnamic aldehyde→NaBH4C6H5−CH=CH.CH2OHcinnamic alcoholWhereas H2/Ni affects double bond and K2Cr2O7/H+ carries oxidation.


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