Chemistry Past Paper Questions

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Q 681:The ability of carbon atoms to form chains is called:
A
Isomerism
B
Catenation
C
Resonance
D
Condensation
Rawalpindi, 2018
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Q 682:The chemical formula of chloroform is:
A
CH3Cl
B
CH2Cl2
C
CHCl3
D
CCl4
Rawalpindi, 2018
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Q 683:The colour of iodine is:
A
Orange
B
Purple
C
Black
D
White
Rawalpindi, 2018
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Q 684:The heat capacity of water is:
A
4.2 KJg-1K-1
B
4.2 Jg-1K-1
C
2.4 KJg-1K-1
D
2.4 Jg-1K-1
Rawalpindi, 2018
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Q 685:The most important oligo saccharid is:
A
Sucrose
B
Glucose
C
Fructose
D
Maltose
Rawalpindi, 2018
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Q 686:The percentage of methane in a natural gas
A
60%
B
70%
C
85%
D
98%
Rawalpindi, 2018
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Q 687:The colour of fluorine is:
A
Pale yellow
B
Greenish yellow
C
Reddish brown
D
Purple black
Rawalpindi, 2018
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Q 688:The atomic radius of carbon atom in pm is:
A
67
B
77
C
87
D
97
Rawalpindi, 2018
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Q 689:Pure water is an example of:
A
Weak electrolyte
B
Strong electrolyte
C
Non-electrolyte
D
Strong acid
Rawalpindi, 2018
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Q 690:Seawater is a source of naturally occuring elements:
A
90
B
92
C
93
D
94
Rawalpindi, 2018
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Total MCQs: 1548Page 69 of 155
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