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Online Tests
Chemistry 10th Class English Medium Unit 9 Online Test MCQs With Answers
Question # 1
The value of K
c
depends on.
Choose an answer
Temperature
Pressure
Volume
Atmosphere
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Question # 2
Such reationsin which reactants and products are sufficient in quantities the Kc value of equilibrium state will be
Choose an answer
Very small
Very large
Moderate
None of these
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Question # 3
Equilibrium constant has no unit when number of moles of reactants and products are:
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same
Different
Both a and b
None of these
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Question # 4
In a Reversible Reaction if Qc = Kc then.
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Reaction is occuring in forward direction
Reaction is occuring in Reverse direction
Equilibrium has been allained
Reaction is not at equilibrium
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Question # 5
If Qc = Kc the reaction goes in:
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Forward
Reverse
At equilibrium state
None
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Question # 6
At equilibrium state there are possibilities: OR types of chemical equilibrium are.
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1
2
3
4
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Question # 7
Guldberg and waage put forward law of mass action in:
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1860
1869
1870
1879
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Question # 8
The two major components of atmosphere are:
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Hydrogen and oxygen
Nitrogen and Hydrogen
Nitrogen and oxygen
Oxygen and water.
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Question # 9
Law of Mass Action was put forward by:
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G.N.Lewis
Lowry
Arrhenius
Gulbderg and Waage
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Question # 10
Such reaction which can be made proceed in either direction depending upon the condition:
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simple reaction
reversible reaction
irreversible reaction
chain reaction
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Question # 11
Reactions which have comparable amounts of reactants and products at equilibrium state have:
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very small Kc value
Very large Kc value
Moderate Kc value
None of these
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Question # 12
The rate of reverse reaction in the beginning.
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Slow
moderate
Very fast
Low
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Question # 13
The characteristics of reversible reactions are the following except:
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Products never recombine to form reactants.
They never complete
The proced in both ways
They have a double arrow between reactants and products.
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