Question

Carbon dioxide gas is __________ in nature.

• A. acidic
• B. basic
• C. neutral
• D. none of these

Answer 1

The correct option is A

acidic

Explanation:

• Acidic compounds are those compounds that turn the blue litmus paper to red.
• Generally, the oxides of non-metal are acidic in nature. Since carbon dioxide is an oxide of carbon.
• So, carbon dioxide is acidic in nature.
• Carbon dioxide gas when dissolved in water form carbonic acid which turns blue litmus paper red hence, it shows that carbon dioxide is acidic.

$\underset{(\mathrm{Carbon}\mathrm{dioxide})}{{\mathrm{CO}}_2\left(\mathrm{g}\right)}+\underset{\left(\mathrm{Water}\right)}{{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}\to \underset{(\mathrm{Carbonic}\mathrm{acid})}{{\mathrm{H}}_2{\mathrm{CO}}_3\left(\mathrm{l}\right)}$

Hence, option (A) is correct.