Question

A metal X on heating with nitrogen gas gives Y. Y on treatment with water gives a colourless gas which when passed through copper sulphate solution gives a blue colour then Y is :

• A. magnesium nitrate
• B. $M{g}_3{N}_2$
• C. ammonia
• D. none of the above

Answer 1

The correct option is C ammonia

$Mg+N_2\to M{g}_3{N}_2$

$M{g}_3{N}_2+3H_{2}O\to 3MgO+2N{H}_3$

Y is ammonia gas.