Chemistry Past Paper Questions

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Q 1401:A reverse reaction is one that :
A
Which proceeds from left to right
B
In which reactants react to form products
C
which slow down gradually
D
which speeds up gradually
Rawalpindi, 2016
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Q 1402:Acetic acid is used for:
A
Flavoring food
B
Making explosives
C
Etching Designs
D
Cleaning Metals
Rawalpindi, 2016
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Q 1403:Acid rain affects the aquatic life by closing fish gills because of ---- metal:
A
Lead
B
Chromium
C
Mercury
D
Aluminium
Rawalpindi, 2016
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Q 1404:Acidic solutions have pH less than
A
2
B
5
C
6
D
7
Rawalpindi, 2016
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Q 1405:A bond formed between two non-metals is expected to be:
A
Covalent
B
Ionic
C
Coordinate Covalent
D
Metallic
Rawalpindi, 2016
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Q 1406:The oxidation number of all elements in free state is:
A
Zero
B
One
C
Two
D
Three
Multan, 2016
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Q 1407:The oxidation number of nitrogen in HNO3 is:
A
+4
B
+5
C
+6
D
+7
Multan, 2016
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Q 1408:When glucose and fructose combine they produce:
A
Starch
B
Cellulose
C
Sucrose
D
None of these
Multan, 2016
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Q 1409:When the magnitude of Kc is very large it indicates:
A
reaction mixture consists of almost all products
B
reaction mixtture has almost all reactants
C
reaction has not gone to completion
D
reaction mixture has negligible products.
Multan, 2016
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Q 1410:will show negligible effect of temperature on its solubility.
A
KCl
B
KNO3
C
NaNO3
D
NaCl
Multan, 2016
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Total MCQs: 1548Page 141 of 155
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