MCQ Collection
jee-advanced-paper-1 MCQs
Practice jee-advanced-paper-1 questions with answers and explanations.
Choose an option to check your answer.
A.
4p
B.
5s
C.
3d
D.
4s
Show Answer
Correct Answer: D. 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
Show Answer
Correct Answer: B. Loss of electrons
Explanation:
Oxidation is electron loss.
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.
Show Answer
Correct Answer: A|C|D
Explanation:
A catalyst changes rates, not thermodynamic equilibrium.
Choose an option to check your answer.
A.
Loss of electrons
B.
Gain of electrons
C.
Gain of neutrons
D.
Loss of protons
Show Answer
Correct Answer: A. Loss of electrons
Explanation:
Oxidation is electron loss.
Choose an option to check your answer.
A.
Lewis base
B.
Oxidising agent only
C.
Brønsted acid
D.
Lewis acid
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Correct Answer: A. Lewis base
Explanation:
A Lewis base donates an electron pair.
Choose an option to check your answer.
A.
dsp2
B.
sp2
C.
sp3
D.
sp
Show Answer
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.
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.
4s
C.
4p
D.
3d
Show Answer
Correct Answer: B. 4s
Explanation:
The common Aufbau order places 4s before 3d.
Choose an option to check your answer.
A.
Gain of neutrons
B.
Gain of electrons
C.
Loss of electrons
D.
Loss of protons
Show Answer
Correct Answer: C. Loss of electrons
Explanation:
Oxidation is electron loss.
Choose an option to check your answer.
A.
Lewis base
B.
Brønsted acid
C.
Lewis acid
D.
Oxidising agent only
Show Answer
Correct Answer: A. Lewis base
Explanation:
A Lewis base donates an electron pair.
Choose an option to check your answer.
A.
sp3
B.
sp
C.
dsp2
D.
sp2
Show Answer
Correct Answer: A. sp3
Explanation:
Four sigma bonds require tetrahedral sp3 hybridisation.
