Question

The solution obtained on dissolving magnesium oxide in water is basic in nature.

• A. True
• B. False

Answer 1

The correct option is A

True

On burning magnesium ribbon, ash of magnesium oxide is obtained. The reaction involved is:

${\text{2Mg(s) +O}}_2\text{(g)}\to \text{2MgO(s)}$

Magnesium oxide on dissolving in water results in the formation of magnesium hydroxide solution. The reaction involved is:

${\text{MgO(s) +H}}_2\text{O(l)}\to {\text{Mg(OH)}}_2\text{(aq)}$

Magnesium hydroxide solution turns red litmus paper to blue. This indicates the basic nature of the solution.