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10th Class Chemistry Chapter 16 Chemical Industries English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
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 # 2
Catalyst used in Haber's process is:
Choose an answer
Ni
Fe
Cu
Zn
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Question # 3
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 # 4
How many % age of urea is used as fertilizers?
Choose an answer
80%
90%
95%
98%
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Question # 5
Sindh alkalies limited was established near Karachi in.
Choose an answer
1965
1966
1970
2000
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Question # 6
Brown hair contains.
Choose an answer
Iron compound
Copper compound
titanium compound
Both a and b
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Question # 7
The elements that do not conduct heat and electricity are called.
Choose an answer
Metallurgy
Non metal
Metalloid
Alloy
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Question # 8
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 # 9
When NaHCO
3
is heated it forms.
Choose an answer
CO
2
Ca(OH)
2
CaCO
3
CaO
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Question # 10
Extraction of metals from its ores is called.
Choose an answer
Metallurgy
Mining
Griding
All
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Question # 11
Formula of soda ash is.
Choose an answer
Na
2
CO
3
NaHCO
3
Na
2
SO
4
Na
3
PO
4
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Question # 12
At the time of partition, How many industries wee present in Pakistan.
Choose an answer
30
32
34
40
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Question # 13
Bister copper is pure about;
Choose an answer
70%
80%
90%
98%
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