MCQ Collection
India MCQs
Practice India questions with answers and explanations.
A. It lowers activation energy for both directions.B. It changes the equilibrium constant.C. It helps equilibrium be reached faster.D. It does not change the equilibrium composition.
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Correct Answer: A|C|D
Explanation:
A catalyst changes rates, not thermodynamic equilibrium.
A. It lowers activation energy for both directions.B. It changes the equilibrium constant.C. It helps equilibrium be reached faster.D. It does not change the equilibrium composition.
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Correct Answer: A|C|D
Explanation:
A catalyst changes rates, not thermodynamic equilibrium.
Choose an option to check your answer.
A.
Raoult law
B.
Boyle law
C.
Charles law
D.
Faraday law
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Correct Answer: C. Charles law
Explanation:
Charles law states V∝T at constant pressure.
Choose an option to check your answer.
A.
dsp2
B.
sp
C.
sp2
D.
sp3
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Correct Answer: D. sp3
Explanation:
Four sigma bonds require tetrahedral sp3 hybridisation.
Choose an option to check your answer.
A.
Charles law
B.
Raoult law
C.
Faraday law
D.
Boyle law
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Correct Answer: A. Charles law
Explanation:
Charles law states V∝T at constant pressure.
Choose an option to check your answer.
A.
5s
B.
3d
C.
4s
D.
4p
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Correct Answer: C. 4s
Explanation:
The common Aufbau order places 4s before 3d.
Choose an option to check your answer.
A.
Gain of electrons
B.
Loss of electrons
C.
Loss of protons
D.
Gain of neutrons
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Correct Answer: B. Loss of electrons
Explanation:
Oxidation is electron loss.
Choose an option to check your answer.
A.
Oxidising agent only
B.
Brønsted acid
C.
Lewis base
D.
Lewis acid
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Correct Answer: C. Lewis base
Explanation:
A Lewis base donates an electron pair.
Choose an option to check your answer.
A.
sp2
B.
dsp2
C.
sp3
D.
sp
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Correct Answer: C. sp3
Explanation:
Four sigma bonds require tetrahedral sp3 hybridisation.
Choose an option to check your answer.
A.
Charles law
B.
Raoult law
C.
Boyle law
D.
Faraday law
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Correct Answer: A. Charles law
Explanation:
Charles law states V∝T at constant pressure.
Choose an option to check your answer.
A.
3d
B.
4s
C.
5s
D.
4p
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Correct Answer: B. 4s
Explanation:
The common Aufbau order places 4s before 3d.
Choose an option to check your answer.
A.
Loss of protons
B.
Loss of electrons
C.
Gain of neutrons
D.
Gain of electrons
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Correct Answer: B. Loss of electrons
Explanation:
Oxidation is electron loss.
