Quiz on Chemistry Set 42

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Quiz on Chemistry Set 42 :

Question 1 :

The purest form of water in nature is
A. Rain water
B. Lake water
C. River water
D. Sea water

Correct Ans: Option A

Question 2 :

In drinking water supply, which of the following treatments is not involved
A. Coagulation
B. Sedimentation
C. Softening
D. Disinfection

Correct Ans: Option C

Question 3 :

The two metal ions that cause hardness to water are:
A. Calcium, Magnesium
B. Sodium, Calcium
C. Sodium, Potassium
D. Sodium, Magnesium

Correct Ans: Option A

Question 4 :

Saturated hydrocarbons have
A. Triple bonds
B. Single bonds
C. Two double bonds
D. Double bonds

Correct Ans: Option B

Question 5 :

Consider the following statements:
1.Sugar chars on heating.
2.On heating, sugar loses water.
3.Sugar is a carbohydrate.
4.Table sugar is made up of glucose and fructose. 
The correct statement(s) is/are
A. 1 only
B. 2 and 3 only
C. 1, 2, 3 and 4
D. 1 and 3 only

Correct Ans: Option C

Question 6 :

Consider the following statements:
1.Catalysts are not consumed during chemical reactions.
2.Catalysts alter the course of the reactions.
3.Catalysts are required in stoichiometric amounts.
 The correct statement(s) is/are:
A. 1 and 3 only
B. 2 and 3 only
C. 1, 2 and 3
D. 1 and 2 only

Correct Ans: Option C

Question 7 :

Bleaching powder is used in drinking water as a/an
A. Disinfectant
B. Antibiotic
C. Antiseptic
D. Coagulant

Correct Ans: Option A

Question 8 :

The process of removing calcium and magnesium from hard water is known as
A. Sedimentation
B. Filtration
C. Flocculation
D. Water softening

Correct Ans: Option D

Question 9 :

Hard water and soft water can be distinguished by using
A. Dilute acid
B. Ordinary soap
C. Detergent
D. Liquid soap

Correct Ans: Option C

Question 10 :

Which method will be employed to test the hardness of water?
A. Boiling
B. Distillation
C. Formation of lather with soap
D. None of these

Correct Ans: Option C

Quiz Summary


Here the correct answers of every question in this quiz.

Q.1 [A],     Q.2 [C],     Q.3 [A],     Q.4 [B],     Q.5 [C],     Q.6 [C],     Q.7 [A],     Q.8 [D],     Q.9 [C],     Q.10 [C],    


Total Questions: 10
Your score:
Subject: Chemistry
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