In the given transformation, which of the following is the most appropriate reagent ?

Engineering

Chemistry

Reduction

Question

Na, Liq. NH₃

Zn – Hg/HCl

${NH}_{2} {NH}_{2}, \overset{⊝}{O} H$

NaBH₄

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Reagent should not effect – OH and C=C

$∴$ Alkaline medium is best suited

$∴$ Wolf - Khischner ${NH}_{2} {NH}_{2}, \bar{OH}$ is most appropriate.