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JEE Main 20199 JanuaryEvening Shift

Exam: JEE Main
Year: 2019
Date: 9 January
Shift: Evening Shift
Subject: Chemistry
Chapter: s Block Elements

JEE Main 2019 · 9 January · Evening Shift · Chemistry · s Block Elements

The metal that forms nitride by reacting directly with N _ 2 of air...

The metal that forms nitride by reacting directly with

{N}_{2}

of air is:

Options

A $Li$
B $Rb$
C $Cs$
D $K$

Correct answer

A. $Li$

Step-by-step solution

Among the alkali metals, only lithium is able to form a stable nitride.

6Li + {N}_{2} \to 2L{i}_{3}N

Lithiumnitride

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