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10th Class Chemistry Chapter 16 Chemical Industries English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Manufacturing of urea involves:
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2 steps
3 steps
4 steps
5 steps
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Question # 2
the chemical formula of chalcopyrite is:
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Cu
2
S
CuFe
2
S
CuS
FeS
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Question # 3
Froth flotation process is used to concentrate.
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Copper ore
Iron ore
Chromium ore
Aluminum ore
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Question # 4
Raw materials used in Solvay's process.
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Brine
Lime stone
Ammonia gas
All
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Question # 5
Ammonia is prepared by the process .
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Ostwald
Haber
Clark
All
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Question # 6
Which one of the not metal.
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Copper
Carbon
chromium
Iron
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Question # 7
Which one of the ore of copper?
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Copper glance
Chalcopyrite
Both a and b
None of these
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Question # 8
The number of carbon atoms present in petroleum gas.
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1-2
1-3
1-4
1-5
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Question # 9
Blonde hair contains compounds of:
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molybdenum
iron
titanium
copper
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Question # 10
The raw materials for the manufacturing of urea are.
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Ammonia
Carbondioxide
Limestone
a & b
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Question # 11
Process of heating the concentrated ore to high temperature in excess of air is called.
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Roasting
Smelting
Bessemerization
All
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Question # 12
Concentration is a separating technique in which mineral is separated from.
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Gangue
Silicates
Aluminates
All
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Question # 13
How many % age of nitrogen in urea fertilizers?
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40.6
45.6
46.6
50
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