Punjab 10th Class Chemistry Chapter 8 Chemical Industries Mcqs Test Online
Questions 10
Total Marks 20
Time 10 Mins
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Punjab 10th Class Chemistry Chapter 8 Chemical Industries Mcqs Test Online

Punjab 10th Class Chemistry Chapter 8 Chemical Industries Test Preparation Online

 

Question 1 of 10

Chemistry

1. A mixture of Cu₂S and FeS called matte is produced in one of the metallurgical operations in the extraction of copper. The name of this operation is:
1.
2.
3.
4.

Question 1 of 10

Question 2 of 10

2. Which of the followings is not a raw material for the manufacture of soda ash.
1.
2.
3.
4.

Question 2 of 10

Question 3 of 10

3. The naturally occurring metallic compounds are called as
1.
2.
3.
4.

Question 3 of 10

Question 4 of 10

4. Which of the following steps is not used in the extraction process of metals:
1.
2.
3.
4.

Question 4 of 10

Question 5 of 10

5. Percentage of nitrogen in urea is
1.
2.
3.
4.

Question 5 of 10

Question 6 of 10

6. Calcination is the process in which sodium hydrogen carbonate is heated to get sodium carbonate. Which is not obtained in this process?
1.
2.
3.
4.

Question 6 of 10

Question 7 of 10

7. What happens when ammonium carbonate is distilled with steam?
1.
2.
3.
4.

Question 7 of 10

Question 8 of 10

8. The separation of minerals from gangue is called concentration. Which of the following methods is used for concentration?
1.
2.
3.
4.

Question 8 of 10

Question 9 of 10

9. Chemical formula of slaked lime is
1.
2.
3.
4.

Question 9 of 10

Question 10 of 10

10. In electrolytic refining of copper, __________ is used as anode.
1.
2.
3.
4.

Question 10 of 10


 

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3 Comments

  1. In 2nd mcq the correct answer is roasting and how ? Because a solution of matte is produced in smelting process not in roasting ? Please let me know about it ……..

    Reply

  2. In 2nd mcq is the correct answer is roasting and how ? Because a solution of matte is produced in smelting process not in roasting ? Please let me know about it ……..

    Reply

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