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A metal is burnt in air and the ash on m...

A metal is burnt in air and the ash on moistening smells of ammonia. The metal is

A

Na

B

Ferrous ammonium sulphate

C

Mg

D

Al.

Text Solution

Verified by Experts

The correct Answer is:
C
Elements of group 2 react with `N_2` to give nitrides which give `NH_3` with water.
`3Mg+N_2toMg_3N_2`
`Mg_3N_2+6H_2Oto3Mg(OH)_2+2NH_3`
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