Question

Identify the products formed on reaction of calcium carbonate with hydrochloric acid.

• A. Carbon dioxide
• B. Calcium hydroxide
• C. Calcium chloride
• D. Water

Answer 1

Answer: (A), (C), (D)

The correct options are
A Carbon dioxide
C Calcium chloride
D Water

Metal carbonate reacts with an acid to form salt, carbon dioxide and water. So, calcium carbonate $\left({\text{CaCO}}_3\right)$ reacts with hydrochloric acid $\left(\text{HCl}\right)$ to form calcium chloride $\left({\text{CaCl}}_2\right)$, carbon dioxide $\left({\text{CO}}_2\right)$ and water $\left({\text{H}}_2\text{O}\right)$. The reaction involved is:

${\text{CaCO}}_3\text{(s)+ 2HCl(aq)}\to {\text{CaCl}}_2{\text{(aq)+ CO}}_2{\text{(g) + H}}_2\text{O(l)}$