Question

Q.2 State whether the following statements are true or false. If false, write the correct statement.

1. Sea water contains salts of calcium & magnesium.

2. Water finds application as a means of transporting goods.

3. On boiling - water exists in the liquid state.

4. Respiration uses up water from the atmosphere.

5. Well water exists below the impervious rocky layers of earth.

6. Sodium carbonate & sodium sulphate - do not form an aqueous solution.

7. If 'X' g. of solute is added to 100 g. of water at t°C and the solution formed is a saturated
solution, then 'X' g. is the solubility of the solute.

8. Purification of water is carried out to remove- dissolved gases e.g.carbon dioxide & dissolved
minerals like magnesium salts.

9. Water from rivers & lakes is - potable water.

10. Chemical pollutants include metallic salt solution of mercury & lead.​

Answer 1

Answer:

here it is

Explanation:

1) true

2) True

3)False

4) False

5) True

6) False

7) False

8) True

9) True

10) True