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Small quantities for very pure N(2)may b...

Small quantities for very pure `N_(2)`may be obtained by carefully warming

A

a mixture of `NH_(3)` and `Br_(2)`

B

barium azide

C

sodium azide

D

both (2) and (3)

Text Solution

Verified by Experts

The correct Answer is:
4
Small amounts of very pure `N_(2)(g)` can be obtained by the thermal decomposition of sodium or barium azide:
`2NaN_(3)overset(300^(@)C)rarr3N_(2)(g)+2Na`
`Ba(N_(3))_(2) rarr Ba+N_(2)`
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