Question

State whether the following statements are true or false. Rewrite the false statements correctly.

Carbon dioxide turns lime water milky.

• A. True
• B. False

Answer 1

The correct option is A True

• Lime water is the aqueous solution of calcium hydroxide that reacts with carbon dioxide to form calcium carbonate.
• The precipitates of calcium carbonate are white and give the solution a milky appearance.
• This process is used in the determination of carbon dioxide gas.

$\underset{\mathrm{Calcium}\mathrm{hydroxide}}{\mathrm{Ca}{\left(\mathrm{OH}\right)}_2\left(\mathrm{aq}\right)}+\underset{\mathrm{Carbon}\mathrm{dioxide}}{{\mathrm{CO}}_2\left(\mathrm{g}\right)}\to \underset{\mathrm{Calcium}\mathrm{carbonate}}{{\mathrm{CaCO}}_3\left(\mathrm{s}\right)}+\underset{\mathrm{Water}}{{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}$

Therefore, the given statement is true.