Question

Carbon dioxide gas turns limewater milky.

• A. True
• B. False

Answer 1

The correct option is A True

Solution of $Ca{\left(OH\right)}_2$ in water is known as limewater. Addition of ${CO}_2$ in limewater causes the formation of white coloured calcium carbonate $\left(Ca{CO}_3\right)$ which turns the solution milky in appearance.

$Ca{\left(OH\right)}_2+{CO}_2\to Ca{CO}_3+H_{2}O$

Thus, it is true that carbon dioxide gas turns limewater milky.