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Online Tests
Chemistry 10th Class English Medium Unit 9 Online Test MCQs With Answers
Question # 1
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 # 2
The value of equilibrium constant (Kc) depends only on:
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temperature
Pressure
concentration
density
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Question # 3
In an irreversible reaction dynamic equilibrium:
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Never establishes
Established before the completion of reaction
Establishes after the completion of reaction
Establishes readily
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Question # 4
The forward reaction takes place:
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Right to left
Left to Right
Only to right
Only to left
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Question # 5
When the magnitude of Kc is very small in indicates.
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Equilibrium will never establish
All reactants will converted to products.
Reaction will go to completion
The amount of products is negligible
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Question # 6
Which type of reactions take place in both directions?
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Addition reactions
Reversible reactions
Irreversibel reactions
Decomposition reactions
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Question # 7
In irreversible reaction, dynamic equilibrium:
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Never establishes
Establishes before the completion of reaction
Establishes after the completion of reaction
Establishes readily
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Question # 8
The reaction in which the products do not recombine to form reactants are called.
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Inversible reactions
Reversible reaction
Decomposition
Addition
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Question # 9
The reaction goes from left to right , if:
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Qc = Kc
Qc > kc
Qc<Kc
Qc = 0
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Question # 10
When the rate of a the forward reaction takes place at the rate of reverse reaction the composition of the reaction mixture remains constant it is called.
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Chemical equilibrium
Dynamic equilibrium
Static equilibrium
All
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Question # 11
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 # 12
In a chemical reaction, the substance that combine are called.
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Reactant
Products
Mass
Material
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