Question

${CO}_2$ + NaOH $H_{2}O$ + X:

Identify X?

• A. NaOH
• B. NaCl
• C. Na₂CO₃
• D. NaO

Answer 1

The correct option is C

Na₂CO₃

${CO}_2+NaOH\to H_{2}O+{Na}_2{CO}_3$

When a non-metallic oxide reacts with base it will produce salt and water.

NaOH is a base, hence it is wrong

NaCl is wrong, but chlorine is not in the reaction. So it is not possible.

${Na}_2{CO}_3$ is correct option.