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

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

 

Question 1 of 10

Chemistry

1. 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 1 of 10

Question 2 of 10

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

1.Smelting

2.Roasting

3.Flotation

4.Refining

Question 2 of 10

Question 3 of 10

3. The naturally occurring metallic compounds are called as

1.Rock

2.Gangue

3.Ore

4.Mineral

Question 3 of 10

Question 4 of 10

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

1.Bessemerization

2.Roasting

3.Smelting

4.Flotation

Question 4 of 10

Question 5 of 10

5. Chemical formula of slaked lime is

1.CaCl₂

2.CaO

3.CaCO₃

4.Ca(OH)₂

Question 5 of 10

Question 6 of 10

6. 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.Electro-refining

4.Smelting

Question 6 of 10

Question 7 of 10

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

1.Urea is produced

2.Urea solution is produced

3.Ammonia is produced

4.Carbon dioxide is released

Question 7 of 10

Question 8 of 10

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

1.H₂O

2.Na₂CO₃

3.CO

4.CO₂

Question 8 of 10

Question 9 of 10

9. Percentage of nitrogen in urea is

1.21.2

2.80

3.35

4.46.6

Question 9 of 10

Question 10 of 10

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

1.Pure copper

2.Copper sulphate

3.Electrolytic tank

4.Impure copper

Question 10 of 10

 Loading...

 

Other Related test

• Punjab 10th Class Pak Study Chapter 1 History of Pakistan II Mcqs Test Online
• Punjab 10th Class Physics Chapter 7 Basic Electronics Mcqs Test Online
• Punjab 11th Class Biology Chapter 7 The Kingdom Protista Mcqs Test Online
• Punjab 12th Class English Mustafa Kamal Chapter 15 MCQs Test Online
• Punjab 9th Class English Chapter 7 Sultan Ahmad Masjid Mcqs Test Online
• Punjab 9th Class Pak Studies Model Paper 4 Mcqs Test Online
• Punjab 12th Class Biology Chapter 25 Ecosystem MCQs Test Online
• Punjab 12th Class Chemistry Chapter 9 Aromatic Hydrocarbons MCQs Test Online
• Punjab 9th Class Pak Studies Model Paper 1 Mcqs Test Online
• Punjab 9th Class Urdu Chapter 6 Panchaiyat Mcqs Test Online