Uses of Carbon Dioxide

Q. In which of the following cases can dry ice be used?

1. Curing local burns
2. Refrigeration of cold drinks
3. Manufacturing ice cream
4. Cold baths in laboratories

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Why is carbon dioxide used in fire extinguishers?
[2 Marks]

Q.

Which of the following can be used for the manufacturing of $C{O}_2$ fire extinguishers.

1. Sodium Bicabonate

2. Potassium Bicarbonate

3. Potassium Bicarbonate and Sodium Bicabonate

4. Nitrogen

Q. Why $NaHC{O}_3$ is used in soda-acid fire extinguisher as well as for making baking powder.

Q.

During photosynthesis, plants take in ___ gas and release ___ gas.

1. carbon dioxide, oxygen

2. oxygen, carbon dioxide

3. oxygen, methane

4. water vapour, methane

Q. The manufacturing of which of the following involve carbon dioxide?

1. Fire extinguishers
2. Sulphuric acid
3. Table salt
4. Aerated drinks

Q. The manufacturing of which of the following involve carbon dioxide?

1. Fire extinguishers
2. Sulphuric acid
3. Table salt
4. Aerated drinks