Nitrogen could be prepared by Options: A . &nbspHeating NH4NO3 carefully B . &nbspExposing HNO3 to red light C . &nbspHeating air D . &nbspHeating NH4NO2 carefully

Nitrogen could be prepared by

Question

Nitrogen could be prepared by

Options:

A . Heating NH4NO3 carefully

B . Exposing HNO3 to red light

C . Heating air

D . Heating NH4NO2 carefully

Answer: Option D
:
D
Heating

N H_{4} N O_{3}

carefully produces

N_{2} O

but heating

N H_{4} N O_{2}

liberates

N_{2}

gas.

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