Chemistry Past Paper Questions

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Q 1311:Alkenes are prepared from alcohols by a process called:
A
Dehydrogenation
B
Dehalogenation
C
Dehydration
D
Dehydrohalogenation
Lahore, 2016
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Q 1312:Depending upon temperature variation, atmosphere is divided into how many regions:
A
1
B
2
C
3
D
4
Lahore, 2016
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Q 1313:If any liquid has pH=7, it will be:
A
Colourless and odorless
B
Boil at 100o and freeze at 0oC
C
Neutral
D
Aqueous solution
Lahore, 2016
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Q 1314:In which cell spontaneous reaction takes place:
A
galvanic cell
B
Electrolytic cell
C
Nelson's cell
D
Down's Cell
Lahore, 2016
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Q 1315:Freezing point of water is:
A
0oC
B
100oC
C
34.4oC
D
4oC
Lahore, 2016
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Q 1316:Group seventeen of periodic table belongs to:
A
Halogens
B
Noble gas
C
Alkali metals
D
Alkaline earth metals
Lahore, 2016
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Q 1317:How many electrons are involved in triple covalent bond:
A
Six
B
Three
C
Four
D
Eight
Lahore, 2016
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Q 1318:How many elements are present in 6th period:
A
2
B
8
C
18
D
32
Lahore, 2016
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Q 1319:Covalent bond involves the:
A
donation of electrons
B
acceptance of electrons
C
sharing of electrons
D
repulsion of electrons
Lahore, 2016
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Q 1320:Air is an example of solution:
A
Solid in solid
B
Solid in liquid
C
Gas in gas
D
Liquid in gas
Lahore, 2016
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Total MCQs: 1548Page 132 of 155
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