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10th Class Chemistry Chapter 16 Chemical Industries English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Imperial chemical industries was established in.
Choose an answer
1942
1944
1950
1990
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Question # 2
Compound of metal exist under earth crust are called.
Choose an answer
Ore
Gangue
Minral
None of these
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Question # 3
When copper pyrite (CuFeS2) is strongly heated in excess of airit converted into mixture of:
Choose an answer
Cu2S + Cu2O
Cu2O +FeS
Cu2S + FeS
FeO + SO2 + Cu2S
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Question # 4
Blonde hair contains compounds of:
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molybdenum
iron
titanium
copper
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Question # 5
Which one of the not metal.
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Copper
Carbon
chromium
Iron
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Question # 6
On which bases froth floatation process take place?
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Density bases
Concentration basis
Watting basis
None of these
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Question # 7
Chalco-pyite is an ore of:
Choose an answer
iron
aluminium
silver
copper
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Question # 8
The residual oil is heated above 400 c to produce.
Choose an answer
Lubricants
Paraffin wax
Asphalt
All
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Question # 9
Concentration of copper are is carried out by process.
Choose an answer
Roasting
Forth floatation
Gravity sepration
Electrostatic separation
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