Q5 of 19 Page 149

Explain the following.

Practical uses of CO2.

Practical uses of CO2:

1. The most important use of CO2 is that plants use CO2 in the process of photosynthesis.


2. Liquid CO2 is used as solvent in dry cleaning.


3. CO2 is used to make aerated drinks.


4. CO2 is used in fire extinguisher to remove oxygen.


5. Solid CO2 is used to keep milk and milk products cool while travelling.


More from this chapter

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5

Explain the following.

Uses of various allotropes of carbon.

 5

Explain the following.

Use of CO2 in fire extinguisher

 6

Write two physical properties each.

A. Diamond


B. Charcoal


C. Fullerene

 7

Complete the following Chemical reactions.

1. ........+.......→ CO2 + 2H2O + Heat


2. ...........+.........→ CH3Cl + HCl


3. 2 NaOH + CO2→........+........