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Nature of Nitrates of alkali metals -
Decomposed upon heating to nitrites and evolve
- wherein
Nitride of Li and Mg -
Both for nitride
by direct combination with nitrogen
- wherein
Other alkali metals combine at high temperature
Only Li react with N2 from all alkali metals
Option 1)
Rb
Option 2)Cs
Option 3)K
Option 4)Li