MCQ
The appropriate reagent for the transformation
- A$Zn(Hg),\,HCl$
- ✓$N{H_2}N{H_2}O{H^ - }$
- C${H_2}/Ni$
- D$NaB{H_4}$
✓
Answer
Correct option: B.
$N{H_2}N{H_2}O{H^ - }$
b
(b) Both $Zn(Hg),\,HCl$ and $N{H_2}N{H_2},\,\,O{H^ - }$ can reduce $ - COC{H_3}$ group to $ - C{H_2} - C{H_3}$ group,
(b) Both $Zn(Hg),\,HCl$ and $N{H_2}N{H_2},\,\,O{H^ - }$ can reduce $ - COC{H_3}$ group to $ - C{H_2} - C{H_3}$ group,
but $HCl$ will also bring about dehydration of alcohol to form alkene. Therefore, appropriate reagent for the conversion is $N{H_2}N{H_2},\,\,O{H^ - }$.
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