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Online Tests
Chemistry 10th Class English Medium Unit 16 Online Test MCQs With Answers
Question # 1
the chemical formula of chalcopyrite is:
Choose an answer
Cu
2
S
CuFe
2
S
CuS
FeS
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Question # 2
Blonde hair contains compounds of:
Choose an answer
molybdenum
iron
titanium
copper
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Question # 3
Chemical formula of matte will:
Choose an answer
Cu2S.FeS
Cu2S
Cu2O
FeS
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Question # 4
Formula of baking soda is.
Choose an answer
Na
2
CO
3
NaHCO
3
Na
2
SO
4
Na
2
PO
4
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Question # 5
The nitrogen present in urea is used by plants to synthesize.
Choose an answer
Sugar
Proteins
Fats
DNA
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Question # 6
Concentration of the copper ore is carried out by:
Choose an answer
Calcinations
Roasting
Forth flotation
Distillation
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Question # 7
Composition of carbon in kerosene oil is.
Choose an answer
C
10
-C
12
C
12
-C
12
C
16
-C
18
C
30
-C
30
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Question # 8
Imperial chemical industries was established in.
Choose an answer
1942
1944
1950
1990
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Question # 9
Concentration is a .
Choose an answer
Mixing technique
Separating technique
Boiling technique
cooling technique
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Question # 10
On which bases froth floatation process take place?
Choose an answer
Density bases
Concentration basis
Watting basis
None of these
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Question # 11
Blast furnace usually used for the metallurgy of.
Choose an answer
Iron
Copper
Aluminum
Both a and b
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Question # 12
Which one of the following is not faction of crude oil.
Choose an answer
Paraffin wax
Asphalt
Fuel oil
Petroleum coke
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Question # 13
Chemical formula of copper glance is:
Choose an answer
Cu2O
Cu2S
CuFeS2
CuSO4
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