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0.40 g of an organic compound (A), (M.F....

`0.40 g` of an organic compound (A), `(M.F.-C_(5)H_(8)O)` reacts with x mole of `CH_(3)MgBr` to liberate 224 mL of a gas at STP. With excess of `H_(2)`, (A) gives pentan-1-ol. The correct structure of (A) is :

A

`CH_(3)-C-=C-CH_(2)-CH_(2)-OH`

B

`CH_(3)-CH_(2)-C-=C-CH_(2)-OH`

C

`H-C-=C-CH_(2)-CH_(2)-CH_(2)-OH`

D

`H-C-=C-CH_(2)-underset(OH)underset(|)CH-CH_(3)`

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