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Very pure N(2) can be obtained by...

Very pure `N_(2)` can be obtained by

A

thermal decomposition of ammonium dichromate

B

treating aqueous solution of `NH_4Cl and NaNO_2`

C

liquefaction and fractional distillation of liquid air

D

thermal decomposition of sodium azide .

Text Solution

Verified by Experts

The correct Answer is:
D
Pure nitrogen is obtained by heating sodium or barium azide in vacuum.
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