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Online Tests
Chemistry 10th Class English Medium Unit 9 Online Test MCQs With Answers
Question # 1
When the magnitude of Kc is very small in indicates.
Choose an answer
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 # 2
When a reaction ceases to proceed further , it is called.
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Chemical states
Static state
Physical state
Dynamic equilibrium state
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Question # 3
What is the colour of hydrogen iodide in product?
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Purple
Yellow
Blue
Colorless
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Question # 4
Such reactions which continue in both directions are called.
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Irreversible
Reversible
Nonreactive
Dynamic
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Question # 5
For reactions having large Kc value, the reaction proceeds to:
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Completion
Equilibrium state
back ward
None of these
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Question # 6
We exhale gas in the atmosphere during respiration.
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Carbon dioxide
Oxygen
Nitrogen
Water
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Question # 7
The rate of reverse reaction in the beginning.
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Slow
moderate
Very fast
Low
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Question # 8
The substance formed during the chemical reaction are called.
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Products
Reactants
Radical
Element
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Question # 9
A complete reaction is one is which.
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All the reactants convert into products.
All the reactants do not convert into products.
Half reactants convert into products.
Only 10% reactants convert into products.
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Question # 10
The plant use
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Carbon di oxide
Oxygen
Nitrogen
Sulphur
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Question # 11
The value of K
c
depends on.
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Temperature
Pressure
Volume
Atmosphere
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Question # 12
The reaction in which the products can recombine to form reactants are called.
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Reversible reaction
Irreversible reaction
Decomposition
Addition
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Question # 13
The unit of molar concentration:
Choose an answer
mol. dm
-2
mol. dm
-1
mol. dm
mol. dm
-3
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