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Compound (X) on reduction with LiAlH(4) ...

Compound `(X)` on reduction with `LiAlH_(4)` gives a hydride `(Y)` containing `21.72 %` hydrogen along with other products. The compound `(Y)` reacts with air explosively resulting in formation of boron trioxide. Identify `(X)` and `(Y)`.
Give balanced reactions involved in the formation of `(Y)` and its reaction with air. Give the structure of `(Y)`.

A

`BCl_(2), B_(2)H_(6)`

B

`B_(2)H_(6), BCl_(3)`

C

`BF_(3),Al_(2)O_(6)`

D

`B_(2)H_(6),BF_(3)`

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The correct Answer is:
A
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