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:

• A. Ammonia
• B. Hydrogen
• C. Nitrogen
• D. Oxygen

Answer 1

Answer: (A)

Ammonia

Answer 2

Mg + 3N2$\longrightarrow$Mg3N2 ; Mg3N2 + 6H2O

$\longrightarrow$3Mg(OH)2 + 2NH3