Chemistry Past Paper Questions

Q 761:If Qc < Kc what will be the direction of reaction?
A
Forward
B
Reverse
C
Equilibrium state
D
Speed up gradually
Sargodha, 2018
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Q 762:In laboratory urea was prepared by:
A
Wholer
B
Rutherford
C
Berzellius
D
Dalton
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Q 763:Just above the earth's surface is:
A
Mesophere
B
Stratosphere
C
Thermosphere
D
Troposphere
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Q 764:Kc is always equal to:
A
Kf/Kr
B
Kr/Kf
C
Rf/Rr
D
Rf/Rf
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Q 765:KCl is an example of:
A
Double salt
B
normal salt
C
Mixed salts
D
Complex salt
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Q 766:Night blindness is because of deficiency of :
A
Vitamin A
B
Vitamin C
C
Vitamin D
D
Vitamin E
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Q 767:Number of elements in first period is:
A
2
B
3
C
4
D
1
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Q 768:Octet rule is:
A
Description of eight electrons
B
Picture of electonic configuration
C
Pattern of electronic configuration
D
Attaining eight electrons
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Q 769:One gram of which metal can be drawn into wire of one and half kilometer long?
A
silver
B
gold
C
iron
D
Calcium
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Q 770:Loss of electrons is called:
A
Oxidation
B
Reduction
C
hydration
D
hydrogenation
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Total MCQs: 1548Page 77 of 155