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10th Class Chemistry Chapter 16 Chemical Industries English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
In solvay's process slaked lime is used to:
Choose an answer
Prepare CO
2
Prepare quick lime
Recover ammonia
Form Na
2
CO
3
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Question # 2
The impurities associated with the minerals are known as:
Choose an answer
Metallurgy
Ores
Gangue
Compounds
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Question # 3
Composition of carbon in the diesel oil.
Choose an answer
C
7
-C
10
C
10
-C
12
C
13
-C
15
C
15
-C
18
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Question # 4
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 # 5
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 # 6
The number of carbon atoms present in kerosene oil.
Choose an answer
8-12
9-12
10-12
11-12
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Question # 7
Chalco-Pyrite is an ore of:
Choose an answer
Copper
Silver
Iron
Aluminium
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Question # 8
Matte is a mixture of:
Choose an answer
FeS and CuS
Cu
2
O and FeO
Cu
2
S and FeS
CuS and FeO
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Question # 9
Sodium carbonate is manufactured by.
Choose an answer
Haber's process
Ostwald's process
Solvay's process
All
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Question # 10
A saturated solution of sodium chloride is called.
Choose an answer
Brine
Suspension
Colloidal
None of these
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Question # 11
When NaHCO
3
is heated if forms:
Choose an answer
CO
2
Ca(OH)
2
CaCO
3
CaO
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Question # 12
Which one of the following is not a fraction of petroleum?
Choose an answer
Kerosene oil
Diesel oil
Alcohol
Petrol
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Question # 13
The number of carbon atoms present in fuel oil.
Choose an answer
14-18
15-18
16-18
17-18
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