Chemistry Past Paper Questions

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Q 161:Pitch is black residue of:
A
Coal gas
B
Coke
C
Coal tar
D
Coal Gas
Lahore, 2019
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Q 162:Rapid growth of algae in water bodies is because of detergent having:
A
Sulphate salts
B
Phosphate salts
C
Sulphonic acid salts
D
Carbonate salts
Lahore, 2019
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Q 163:The colour of hydrogen iodide (HI) is:
A
Black
B
Purple
C
Colourless
D
Blue
Lahore, 2019
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Q 164:The most important oligosaccharide is:
A
Glucose
B
Sucrose
C
Maltose
D
Fructose
Lahore, 2019
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Q 165:The non-metal which is present in group 15 of periodic table:
A
Carbon
B
Sulphur
C
Nitrogen
D
Iodine
Lahore, 2019
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Q 166:The element which occurs in liquid state at room temperature:
A
Zinc
B
Sodium
C
Hydrogen
D
Mercury
Lahore, 2019
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Q 167:The melting point of sodium chloride is:
A
600°C
B
750°C
C
800°C
D
100°C
Lahore, 2019
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Q 168:The molar mass of H2SO4 is:
A
98 grams
B
98 amu
C
9.8 grams
D
9.8 amu
Lahore, 2019
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Q 169:The bond formed due to mutual sharing of electron is called:
A
Ionic
B
Covalent
C
Metallic
D
Coordinate
Lahore, 2019
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Q 170:Plum pudding model was put forward by:
A
Thomson
B
Chadwick
C
Goldstein
D
Dalton
Lahore, 2019
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Total MCQs: 1548Page 17 of 155
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