Online MCQs – Environmental Chemistry-2 Water – Chemistry 10th

Class 10th | Chemistry | Chapter 6 | Environmental Chemistry-2 Water | Solved Online MCQs Test

Online MCQs Test of Chapter 6 (Environmental Chemistry-2 Water) Chemistry Class 10th Science Group – Sindh Board. According to New Examination Pattern / Syllabus of Sindh Board

1. How much percentage (%) of the Earth’s Surface is covered with water?

 
 
 
 

2. What percentage of water on the earth is fresh water?

 
 
 
 

3. Hookworm larvae enter the body via the:

 
 
 
 

4. Fluorosis can harm our:

 
 
 
 

5. The permanent hardness of water is due to presence of:

 
 
 
 

6. It is known as the universal solvent.

 
 
 
 

7. What percentage of water on the earth is salt water?

 
 
 
 

8. Water is a:

 
 
 
 

9. How much fresh water is present on earth (rivers and lakes):

 
 
 
 

10. The taste of water is:

 
 
 
 

11. Water is litmus:

 
 
 
 

12. It is a gastrointestinal ailment caused by a waterborne microbe (protozoa) that causes diarrhea and vomiting.

 
 
 
 

13. Which of the following is NOT soluble in water?

 
 
 
 

14. It is a kind of gastrointestinal infection caused by bacteria or parasites.

 
 
 
 

15. Without water, a person can live no more than:

 
 
 
 

16. Which salts are excessively dissolved to make temporary hard water:

 
 
 
 

17. The mechanism by which water rises from the roots of-plants to the leaves is known as:

 
 
 
 

18. In this disease the liver stops working, and the eyes turn yellow the patient is weak and tired.

 
 
 
 

19. At 4°C, maximum density of water is:

 
 
 
 

20. Which type of bond is formed between H2O molecules:

 
 
 
 


Online MCQs Test preparation for Chemistry Class 10th (Science Group Sindh Board) helps students practice effectively. These multiple-choice questions are taken from Chapter 6 “Environmental Chemistry-2 Water” of the Class 10th Chemistry textbook. They fully cover the requirements of the objective section in the examination. This activity is a valuable resource for excellent exam preparation. The Online MCQs Test provides students with the best platform to assess their knowledge and practice independently.
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