Question

Colourless and odourless gas is librate when hydrochloric acid is added to a solution of washing soda...Name the gas

Answer 1

The gas liberated is carbon dioxide gas

Answer 2

$Na_2CO_3 + HCl$ → $NaCl + H_2O + CO_2$

Explanation:

The colourless and odourless gas that is liberated is carbon dioxide.

Washing soda reacting with hydrochloric acid can be shown by the following reaction -

Reactants used are -

• A 1M solution of hydrochloric acid $(HCl)$

• An equal amount of 1 M solution of washing soda $(Na_2CO_3)$

The product formed is -

• Carbon dioxide
• Sodium chloride
• Water

Carbon dioxide bubbles out as colourless and odourless gas that is produced as a result of the reaction -

The reaction is as follows -

$Na_2CO_3 + HCl$ → $NaCl + H_2O + CO_2$