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

Please wait...

• <<
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• >>

 

Question 1 of 10

Chemistry

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

1.CO

2.H₂O

3.Na₂CO₃

4.CO₂

Question 1 of 10

Question 2 of 10

2. 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.Bessemerization

2.Roasting

3.Smelting

4.Electro-refining

Question 2 of 10

Question 3 of 10

3. In electrolytic refining of copper, __________ is used as anode.

1.Electrolytic tank

2.Impure copper

3.Pure copper

4.Copper sulphate

Question 3 of 10

Question 4 of 10

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

1.Flotation

2.Roasting

3.Smelting

4.Refining

Question 4 of 10

Question 5 of 10

5. Which of the following steps is not used in the extraction process of metals:

1.Smelting

2.Flotation

3.Roasting

4.Bessemerization

Question 5 of 10

Question 6 of 10

6. The naturally occurring metallic compounds are called as

1.Ore

2.Mineral

3.Rock

4.Gangue

Question 6 of 10

Question 7 of 10

7. Percentage of nitrogen in urea is

1.35

2.46.6

3.21.2

4.80

Question 7 of 10

Question 8 of 10

8. Chemical formula of slaked lime is

1.CaCl₂

2.CaO

3.Ca(OH)₂

4.CaCO₃

Question 8 of 10

Question 9 of 10

9. Which of the followings is not a raw material for the manufacture of soda ash.

1.Carbon monoxide

2.Ammonia

3.Brine

4.Lime stone

Question 9 of 10

Question 10 of 10

10. What happens when ammonium carbonate is distilled with steam?

1.Ammonia is produced

2.Urea is produced

3.Urea solution is produced

4.Carbon dioxide is released

Question 10 of 10

 Loading...

 

Other Related test

• Punjab 12th Class Pak Study Chapter 8 National Integration and Prosperity Mcqs Test Online
• Punjab 12th Class English Good Bye Mr. Chips Chapter 13 MCQs Test Online
• Punjab 9th Class Urdu Chapter 7 Araam o Sukoon Mcqs Test Online
• Punjab 10th Class Islamic Studies Chapter 1 Taharat aur Jismani Safai Mcqs Test Online
• Punjab 11th Class English Chapter 1 Button Button Mcqs Test Online
• Punjab 12th Class Chemistry Chapter 2 s – Block Element Mcqs Test Online
• Punjab 10th Class Biology Chapter 9 Pharmacology Mcqs Test Online
• Punjab 9th Class Chemistry Model Paper 2 Mcqs Test Online
• Punjab 12th Class Physics Chapter 7 Electronics Mcqs Test Online
• Punjab 9th Class Pak Study Chapter 1 Ideological Basis of Pakistan Mcqs Test Online