Chapter 8 Chemical Industries Important MCQs with Answers | 10th Class Chemistry

 Here we have provided all the important Multiple choice questions and answers of Chapter Chemical Industries of 10th class chemistry.


MCQ 1: The boiling point of petrol is
A. below 20
B. 170-120°C
C. 35-70°C
D. 270-340°C
MCQ 2: The percentage of nitrogen (N) in urea (CH4N2O) is
A. 50%
B. 46.60%
C. 40%
D. 20%
MCQ 3: The process of separating metal from ore is called
A. magnetic separation
B. floatation process
C. metallurgy
D. cyclone separation
MCQ 4: The color of crude oil is
A. brownish black
B. white
C. transparent
D. light yellow
MCQ 5: Raw materials for production of urea are
A. ammonia and carbon dioxide
B. oxygen and carbon dioxide
C. ammonia and oxygen
D. ammonia and phosphate
MCQ 6: Naturally occurring metallic compounds are called
A. metalloids
B. minerals
C. hard solids
D. soft solids
MCQ 7: The process of converting minerals in to oxides is called
A. smelting
B. reigning
C. roasting
D. bessemerization
MCQ 8: In magnetic separation, magnets are used to separate
A. mineral and gangue
B. metal and mineral
C. metal and gangue
D. iron and steel
MCQ 9: When earth's crust is drilled, the hydrocarbon came out first is
A. petroleum
B. methane
C. ethane
D. butane
MCQ 10: The fertilizer which doesn't affect the texture of soil is
A. urea
B. ammonium sulphate
C. ammonium phosphate
D. super phosphate
MCQ 11: Smelting is
A. reduction of metal oxides
B. oxidation of minerals
C. oxidation of metals
D. melting of metals
MCQ 12: The raw materials for Solvay process includes
A. ammonia
B. brine
C. lime stone
D. all of above
MCQ 13: Crude oil is converted in to useful products by
A. drilling
B. Solvay process
C. roasting
D. refining
MCQ 14: Solvay process is used to make
A. potassium carbonate
B. sodium carbonate
C. NaCl
D. NaOH
MCQ 15: Compounds which are added in soil to provide essential elements to plants are called
A. carbonates
B. salts
C. fertilizers
D. metals
Answers:
1. C
2. B
3. C
4. A
5. A
6. B
7. C
8. A
9. B
10. A
11. A
12. D
13. D
14. B
15. C 

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