Chemistry Past Paper Questions

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Q 181:Which of the following salts makes the water permanently hard:
A
NaHCO3
B
Na2CO3
C
Ca(HCO3)2
D
CaSO4
Lahore, 2019
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Q 182:Which one of the following diseases causes severe diarrhea and can be fatal:
A
Typhoid
B
Dysentery
C
Cholera
D
Jaundice
Lahore, 2019
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Q 183:Which one of the following ion causes hardness in water:
A
Mg2+
B
Al3+
C
Na+
D
Fe2+
Lahore, 2019
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Q 184:Which one of the following is not a fraction of petroleum:
A
Petrol
B
Alcohol
C
Diesel oil
D
Kerosene oil
Lahore, 2019
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Q 185:Which vitamin is fat soluble:
A
C
B
K
C
B
D
B complex
Lahore, 2019
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Q 186:Which one of the following is solid in gas solution:
A
Smoke in air
B
Butter
C
Brass
D
Fog
Lahore, 2019
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Q 187:Which one of the following is the lightest metal:
A
Calcium
B
Magnesium
C
Lithium
D
Sodium
Lahore, 2019
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Q 188:Which one of the following metal is used for galvanizing:
A
Zn
B
Cr
C
Cu
D
Fe
Lahore, 2019
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Q 189:Which one is a non-polar molecule:
A
HCl
B
NH3
C
H2O
D
H2
Lahore, 2019
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Q 190:Which of the following is strong electrolyte:
A
Sugar Solution
B
Benzene
C
Solution of CA(OH)2
D
Solution of NaOH
Lahore, 2019
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Total MCQs: 1548Page 19 of 155
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