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Hydrocarbon (X), C(7)H(12), on reaction ...

Hydrocarbon (X), `C_(7)H_(12)`, on reaction with boron hydride followed by treatment with `CH_(3)COOH` yields (A). On reductive ozonolysis (A) yields a mixture of two aldehydes, (B) and (C ). Of these, only (B) can undergo Cannizzaro reaction. (A) exists in two geometrical isomer, `(A-1)` and `(A-2)`, of which `(A-2)` is more stable. Gives structures of (X), (A), (B), (C ), `(A-1)`, and `(A-2)` with proper reasoning.

Text Solution

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The formula of hydrocarbon `(C_(7)H_(12))` suggests that it is an alkyne `(C_(n)H_(2n-2))` which upon hydroboration gives alkene [A].
(ii) since the alkene upon reductive ozonolysis gives two aldehydes [B] and [C] out of which [B] can undergoes Cannizzaro's reactions, this means that the aldehyde [B] has no `alpha`-hydrogen atom and the CHO group is linked to teritary butyl group. Keeping these obseration in view, the hydrocarbon [X] and the related reactions are listed:
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