Punjab 10th Class Chemistry Chapter 7 Water Mcqs Test Online Solved with Right Answers

Question 1 of 8

Chemistry

1. Which salt does not cause the water to become hard.

1.Magnesium sulphate

2.Magnesium hydrogen carbonate

3.Sodium chloride

4.Calcium hydrogen carbonate

Question 1 of 8

Question 2 of 8

2. Which of the followings is not a water born disease?

1.Anemia

2.Dysentery

3.Hepatitis

4.Typhoid

Question 2 of 8

Question 3 of 8

3. Which salt causes temporary hardness in water

1.Magnesium sulphate

2.Calcium sulphate

3.Both calcium sulphate and magnesium sulphate

4.Magnesium hydrogen carbonate

Question 3 of 8

Question 4 of 8

4. Heating calcium hydrogen carbonate produces

1.H₂O

2.All of these

3.CaCO₃

4.CO₂

Question 4 of 8

Question 5 of 8

5. Which is used to remove permanent hardness in water?

1.Boiling water

2.Washing soda

3.Slaked lime

4.All of these

Question 5 of 8

Question 6 of 8

6. Percentage of sodium chloride in sea water is

1.3.4

2.2

3.0.02

4.97

Question 6 of 8

Question 7 of 8

7. Which human activity results in contamination of water bodies?

1.Pesticides

2.All of these

3.Septic tanks

4.Livestock waste

Question 7 of 8

Question 8 of 8

8. The density of water is maximum at.

1.0°C

2.-4°C

3.4°C

4.100°C

Question 8 of 8

Punjab 10th Class Chemistry Chapter 7 Water Mcqs Test Online

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Punjab 10th Class Chemistry Chapter 7 Water Mcqs Test Online

Chemistry Chapter 7 Water 10th Class Punjab Boards Online MCQs

Chemistry

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