Which of the following set of reagents can be used to being about the transformation shown?

H_{2} O, H_{3} O^{+}

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H g (O A c)_{2}

then,

N a B H_{4}, N a O H

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C r O_{3}, H_{2} S O_{4}

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B H_{3}, T H F

then

H_{2} O_{2}, N a O H

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Solution

The correct option is B $H g (O A c)_{2}$ then, $N a B H_{4}, N a O H$
The set of reagents represented by option (B) ( $H g (O A c)_{2}$ , then $N a B H_{4}, N a O H$ ) can be used to bring about the transformation shown. Net reaction is addition of a molecule of water to $C = C$ double bond. $- O H$ group is added to more substituted $C$ atom.
Oxymercuration-demercuration brings about Markownikoff's addition of water without rearrangement.

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Similar questions

A H_{2} O - --- \to H_{2} S O_{4} B

A 1. H g (O A c)_{2}, H_{2} O - ---------- \to 2. N a B H_{4} B

A 1. B H_{3}, T H F - -------- \to 2. H_{2} O_{2}, O H^{-} B

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