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Very pure nitrogen can be obtained by :...

Very pure nitrogen can be obtained by :

A

Thermal decomposition of `NH_(4)Cl " and " NaNO_(2)`

B

Treating aqueous solution of `NH_(4)Cl " and " NaNO_(2)`

C

Liquefication and fractional distillation of liquid air

D

Thermal decomposition of sodium azide.

Text Solution

Verified by Experts

The correct Answer is:
D
Very pure `N_(2)` can be obtained by the thermal decomposition of sodium azide.
`underset("Sodium azide")(2NaN_(3)) overset("heat") to 2Na + 3N_(2)`
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