NEET UG CHEMISTRY MCQ: 13 TH GROUP ELEMENTS (P-BLOCK)

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Amorphous boron on burning in air forms:

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Correct option: B

Mixture of

{\mathrm{B}_2}{\mathrm{O}_3}

and BN

Option B (Mixture of

B_2O_3

and BN) is correct because amorphous boron reacts with both oxygen and nitrogen in the air upon burning.

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{H}_3 {PO}_4

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\mathrm{TI}

\mathrm{d}

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