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Oxides of Nitrogen

When crystals...

Question

When crystals of lead nitrate heated strongly, it produces______ gas.

A

N O_{2}

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B

N O

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C

N_{2} O

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D

N_{2} O_{4}

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Solution

The correct option is B $N O_{2}$
Strong heating of lead nitrate results in the evolution of a brown gas, nitrogen dioxide, and a yellow residue of lead oxide.
$2 P b (N O_{3}) \to 2 P b O + 2 N O_{2} + O_{2}$

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