Which reagent is used for the conversion of (A) to (B) ?

H_{2} + [R h C l (P h_{3} P)_{3}]

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N H_{2} N H_{2} + O_{2}

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M M P P i n e t h a n o l / H_{3} O^{⨁}

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S i a_{2} B H + C H_{3} C O O H

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Solution

The correct option is B $S i a_{2} B H + C H_{3} C O O H$
a) $H_{2} + [R h C l (P h_{3} P)_{3}]$ and (b) $N H_{2} N H_{2} + O_{2}$ reduce both the (C=C) to (C-C) (syn-addition).
(c) MMPP in ethanol $/ H_{3} O^{⨁}$ is used for the antihydroxylation of both $(C = C)$ to $(- C | (O H) - C | (O H) -$
(d) $S i a_{2} B H + C H_{3} C O O H$ reduces only unhindered (C=C) to (C-C).
The reagent used for the conversion of (A) to (B) is
$S i a_{2} B H + C H_{3} C O O H$

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