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. Which of the following is helpful for removal of permanent hardness:

 
 
 
 

2. Water makes up around of the earth’s surface.

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Water is litmus:

 
 
 
 

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

 
 
 
 

13. Hookworm larvae enter the body via the:

 
 
 
 

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

 
 
 
 

15. Fluorosis can harm our:

 
 
 
 

16. The taste of water is:

 
 
 
 

17. An excess of bile pigments in the blood causes

 
 
 
 

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

 
 
 
 

19. Water is a:

 
 
 
 

20. What percentage of fresh water is accessible to humans?

 
 
 
 


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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