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Question

What is released when $$B_2H_6$$ reacts with oxygen?


A
Hydrogen gas
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B
B2O3
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C
no reaction
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D
BO2
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Solution

The correct option is D $$B_2O_3$$
When diborane ($$B_2H_6$$) reacts with oxygen (or air), it catches fire. It burns in oxygen and the reaction is exothermic.
The reaction which takes place is:
$$B_2H_6$$ + 3$$O_2$$ $$\rightarrow$$  $$B_2O_3$$ + 3$$H_2O$$.
Hence, $$B_2O_3$$ (Boron Oxide) is formed.

Chemistry

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