s-Block ElementsHard

Question

A piece of magnesium ribbon was heated to redness in an atmosphere of nitrogen and on cooling, water was added, the gas evolved was :

Options

A.ammonia
B.hydrogen
C.nitrogen
D.oxygen

Solution

Mg + 3N2 →  Mg3N2 ; Mg3N2 + 6H2O →  3Mg(OH)2 + 2NH3

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