Two elements A and B have similar chemical properties. They don’t form solid hydrogencarbonates, but react with nitrogen to form nitrides. A and B, respectively, are :
Solution
Solid hydrogencarbonates are not formed
by lithium and magnesium.
<br><br>– 6Li + N<sub>2</sub> $\to$ 2Li<sub>3</sub>N
<br><br>– 3Mg + N<sub>2</sub> $\to$ Mg<sub>3</sub>N<sub>2</sub>
About this question
Subject: Chemistry · Chapter: s-Block Elements · Topic: Alkali Metals
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