Question

Explain carbon dioxide and its uses.

Answer 1

The amount of carbon dioxide present in the air is only 0.03%. Though it is less in percentage, its uses are more and essential. It can be tested with lime water. The lime water changes from colorless to milky.
Uses of carbon dioxide:

1. Carbon dioxide helps plants in photosynthesis.
2. It is used in fire extinguishers. ‘
3. It is used in refrigerators as dry ice for cooling purposes.
4. It is used to make plastics and polymers.