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Question

In the reaction sequence CaC2H2O−−→AHg+2−−−−−→dilH2SO4BNi−→H2C

the product C is:

A
CH3OH
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B
CH3CHO
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C
C2H5OH
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D
C2H4
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Solution

The correct option is C C2H5OH
Calcium carbide reacts with water to form acetylene, acetylene reacts with Hg+2,dil.H2SO4 to form ethanal, ethanal reacts with Ni/H2 to form ethanol.
CaC2H2OCHCH(A)Hg+2−−−−dilH2SO4CH3CHO(B)NiH2CH3CH2OH(C)
ethanol
So answer is C.

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