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Chemistry
Very pure N2 can be obtained by
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Q. Very pure $N_2$ can be obtained by
KCET
KCET 2018
The p-Block Elements - Part2
A
Thermal decomposition of ammonium dichromate
13%
B
Treating aqueous solution of $NH_4Cl$ and $NaNO_2$
15%
C
Liquifaction and fractional distillation of liquid air
17%
D
Thermal decomposition of sodium azide
55%
Solution:
$2 NaN _{3} \stackrel{\Delta}{\longrightarrow } 2 Na _{( s )}+\underset{\text { Pure }}{3 N _{2( g )}}$