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Amorphous boron on burning in air forms

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Amorphous boron on burning in air forms
A. `B(OH)_(3)`
B. Mixture of `B_(2)O_(3)` and `BN`
C. Only `B_(2)O_(3)`
D. Only `BN`
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1 Answer

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Best answer
Correct Answer - B
`4B+3O_(2)overset(1173 K)to2B_(2)O_(3)`
`2B(s)+N_(2)(g)overset(1173 K)to2BN(s)`
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