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15th Unit

10th Chemistry English Medium Chapter 7 Test

Matric Part 2/10th Class Chemistry Chapter 15 MCQ Test With Answer for Unit 15 Water Preparation

This online test contains MCQs about following topics:

- Properties of Water

- Water as Solvent

- Soft and Hard Water

- Types of Hardness

- Methods of Removing Hardness

- Disadvantages of Water Hardness

- Water Pollution

- Waterborne Diseases


10th Chemistry Chapter Wise Test
(English Medium)

Click Here for Chemistry Urdu Medium Ch 7 MCQ Test

Matric Part 2/10th Class Chemistry Chapter 15 MCQ Test With Answer for Unit 15 Water Preparation

Sr. # Questions Answers Choice
1 Water become hard because of:
  • A. Ca+2
  • B. Mg+2
  • C. SO-24
  • D. all of these
2 The freezing point of water is:
  • A. 10 <sup>o</sup>C
  • B. 100<sup>o</sup>C
  • C. 0<sup>o</sup>C
  • D. 46<sup>o</sup>C
3 Which one of the following properties of water is responsible for rising of water in plants?
  • A. Specific heat capacity
  • B. Viscosity
  • C. Excellent solvent action
  • D. Capillary action
4 Chemical form of gypsum.
  • A. MgSO<sub>4</sub>. 5H<sub>2</sub>O
  • B. CaSO<sub>4</sub>. 2H<sub>2</sub>O
  • C. FeSO<sub>4</sub>. 5H<sub>2</sub>O
  • D. CuSO<sub>4</sub>. 5H<sub>2</sub>O
5 Vibrious cholera bacteria causes the disease
  • A. Cholera
  • B. Diarrhea
  • C. Jaundice
  • D. Hepatitis
6 Temporary hardness can be removed by__________.
  • A. Quick lime
  • B. Slaked lime
  • C. Lime stone
  • D. HCl
7 The percentage of ocean in world water is.
  • A. 50%
  • B. 67%
  • C. 97%
  • D. 25%
8 Which one of the following diseases severe diarrhea and can be fatal?
  • A. Joundice
  • B. Cholera
  • C. Dysentery
  • D. Typhoid
9 Rapid growth of algae in water bodies in because of detergent having.
  • A. Carbonat salt
  • B. Sulphonic acid
  • C. Sulphat salt
  • D. Phosphate salt
10 Clark's method is used to remove the hardness of water, in this method which is used.
  • A. Ca(HCO<sub>3</sub>)<sub>2</sub>
  • B. Na-Zeolite
  • C. Ca-Zeolite
  • D. Ca(OH)<sub>2</sub>

Top Scorers of Chemistry 10th Class English Medium Unit 15 Online Test

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