Question

Assertion-Gas bubbles are observed when sodium carbonate is added to dilute hydrochloric acid. Reason-carbon dioxide is given off in the reaction.

Answer 1

Explanation:

In the given chemical reaction,the reactants are sodium carbonate (Na2CO3) and diluted hydrochloric acid (HCl). - And,we know that sodium carbonate is a base and hydrochloric acid is an acid. ... - The produced carbon dioxide in the above mentioned reaction is the reason behind the bubbling

Answer 2

The assertion is correct but the reson is wrong.

• The chemical formula of sodium carbonate is $Na_2CO_3$.
• The chemical formula of hydrochloric acid is HCl.
• When sodium carbonate reacts with HCl $H_2CO_3$ gas is given off in form of bubbles along with NaCl.
• $H_2CO_3$ is a colorless gas. Its chemical name is carbonic acid. It is evolved in form of bubbles.
• The reaction is-
• $Na_2CO_3+HCl\rightarrow H_2CO_3+NaCl$