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JEE PYQ: S Block Elements Question 31

Question 31 - 2019 (09 Jan Shift 2)

The metal that forms nitride by reacting directly with $\text{N}_2$ of air, is:

(a) K (b) Li (c) Rb (d) Cs

Show Answer

Answer: (b)

Solution

Amongst the given alkali metals, only lithium can react with $\text{N}_2$ in air to form lithium nitride: $6\text{Li} + \text{N}_2 \rightarrow 2\text{Li}_3\text{N}$.


Learning Progress: Step 31 of 37 in this series