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10th Class Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Which one of the following is not a greenhouse Effect?
Choose an answer
Increasing atmosphere temperature.
Increasing food chains
increasing flood risks
Increasing sea-level
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Question # 2
When crude oil is heated in the fractionating tower:
Choose an answer
Vapour of higher boiling point fraction condense first in the lower part of the tower.
Vapours of lower boiling point fraction condense first in the lower part of tower.
Vapour of higher boiling point condense lather in the upper part of tower.
Vapours of higher boiling point never condense.
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Question # 3
Potassium ferrocyanide salt is.
Choose an answer
Normal
complex
Basic
Acidic
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Question # 4
Which vitamin is soluble in water?
Choose an answer
Vitamin A
Vitamin E
Vitamin D
Vitamin C
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Question # 5
A hydrocarbon has molecular formula C
8
H
14
. What is the molecular formula of the next number of the same homologous series.
Choose an answer
C
9
H
18
C
9
H
16
C
9
H
20
C
9
H
12
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Question # 6
Alkanes give reaction only
Choose an answer
Addition
Decomposition
Substitution
Displacement
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Question # 7
Methyl orange produces which colour in basic solution
Choose an answer
Red
Yellow
Pink
White
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Question # 8
Almost all aircrafts fly in:
Choose an answer
troposphere
mesosphere
stratosphere
themosphere
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Question # 9
Temporary hardness of water is removed by adding.
Choose an answer
Ca(OH)
2
NaOH
KOH
CaSO
4
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Question # 10
The reaction goes from left to right , if:
Choose an answer
Qc = Kc
Qc > kc
Qc<Kc
Qc = 0
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Question # 11
How many units are in Pakistan for manufacturing of Urea.
Choose an answer
3
6
9
12
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Question # 12
General formula of alkynes is:
Choose an answer
C
n
H
n
C
n
H
2n
C
n
H
2n+2
C
n
H
2n-2
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Question # 13
Which process is responsible for ascending of water in roots:
Choose an answer
evaporation
transpiration
condensation
capillary action
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