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10th Class Chemistry Chapter 16 Chemical Industries English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
How many % age of nitrogen in urea fertilizers?
Choose an answer
40.6
45.6
46.6
50
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Question # 2
Which one of the following is manufactured by Solvar's process:
Choose an answer
caustic soda
washing soda
urea
sulphuric acid
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Question # 3
The raw materials for the manufacturing of urea are.
Choose an answer
Ammonia
Carbondioxide
Limestone
a & b
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Question # 4
A saturated solution of sodium chloride is called.
Choose an answer
Brine
Suspension
Colloidal
None of these
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Question # 5
Which one of the following is not a fraction of petroleum?
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Kerosene oil
Diesel oil
Alcohol
Petrol
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Question # 6
How many % age of nitrogen present in air by volume?
Choose an answer
70%
75%
78%
80%
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Question # 7
Ammonia is prepared by:
Choose an answer
Solvay's process
Haber's process
Floatation process
Bayer's process
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Question # 8
The nitrogen present in urea is used by plants to synthesize.
Choose an answer
Sugar
Proteins
Fats
DNA
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Question # 9
Froth flotation process is used to concentrate.
Choose an answer
Copper ore
Iron ore
Chromium ore
Aluminum ore
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Question # 10
Ammonical brine is prepared by dissolving ammonia gas in.
Choose an answer
NaCl
CaCO
3
CaCl
2
Na
2
SO
4
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Question # 11
Which one of the following is used as jet fuel.
Choose an answer
Kerosene oil
Lubricating oil
Fuel oil
Diesel oil
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Question # 12
In smelting process a small amount of coke is required because:
Choose an answer
it is highly endothermic process
it is highly exothermic process
it is very fast process
it is very slow process
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Question # 13
Concentration is a .
Choose an answer
Mixing technique
Separating technique
Boiling technique
cooling technique
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