Chemistry Past Paper Questions

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Q 451:pH of neutral solution is:
A
06
B
06
C
07
D
08
Faisalabad, 2018
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Q 452:Rain water is weakly acidic because of:
A
SO3
B
CO2
C
SO2
D
NO2
Faisalabad, 2018
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Q 453:Specific heat capacity of water is:
A
4.2KJg-1K-1
B
4.2Jg-1K-1
C
2.4KJg-1K-1
D
2.4Jg-1K-1
Faisalabad, 2018
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Q 454:Stearic acid is present in:
A
Apple
B
Fats
C
Grapes
D
Lemon
Faisalabad, 2018
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Q 455:Temporary hardness is because of:
A
CaCO₃
B
Ca(HCO3)2
C
MgCO₃
D
MgSO₄
Faisalabad, 2018
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Q 456:The amount of energy given out when an electron is added to an atom is called:
A
Lattice energy
B
Ionization Energy
C
Electronegativity
D
Electron Affinity
Faisalabad, 2018
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Q 457:The amount of energy given out when an electron is added to an atom is called:
A
Lattice Energy
B
Ionization Energy
C
Electro negativity
D
Electron Affinity
Faisalabad, 2018
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Q 458:Starch, Albumin, Soap solution are:
A
True solutions
B
False solutions
C
Molar solution
D
Suspensions
Faisalabad, 2018
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Q 459:Sodium is extremely reactive metal but it does not react directly with:
A
nitrogen
B
hydrogen
C
carbon
D
phosphorus
Faisalabad, 2018
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Q 460:sodium is extremely reactive metal but it does not react with:
A
Hydrogen
B
Nitrogen
C
Sulphur
D
Phosphorus
Faisalabad, 2018
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Total MCQs: 1548Page 46 of 155
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