Question

A red oxide X on heating produces a silver element Y and thereby releasing a gas Z which helps in
respiration. Identify X,Y,Z. Also write a balanced equation for the same.​

Answer 1

Explanation:

A divalent metal with atomic number 12 is Mg ,

reacts with an acid liberating a gas X. Mg+HCl→MgCl

2

+H

2

(g)

.

X is gas H

2

. H

2

on treatment with a non metal Cl

2

gives HCl, which on dissolution in water produces the same acid HCl.Y is Cl

2

and Z is HCl.

H

2

+Cl

2

→HCl

Cl

2

+H

2

O→2HCl+O

2