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Post category:Chemistry Mcqs General Science & Ability MCQs
Post author:Maxter ʚïɞ

In the quantum mechanical treatment of the hydrogen atom, which one of the following combinations of quantum numbers is not allowed?

A. 3, 1, -1
B. 3, 2, 2
C. 3, 2, -1
D. 3, 3, 2

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Correct Answer: D. 3, 3, 2

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Post category:Chemistry Mcqs General Science & Ability MCQs
Post author:Maxter ʚïɞ

“Each electron in an atom must have its own unique set of quantum numbers” is a statement of

A. Aufbau principle
B. Pauli exclusion principle
C. Hund’s rule
D. Periodic law

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Correct Answer: B. Pauli exclusion principle

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Post category:Chemistry Mcqs General Science & Ability MCQs
Post author:Maxter ʚïɞ

All of the following statements are correct for atomic structure and quantum numbers except

A. In a given atom, the maximum number of electrons having principal quantum
number n = 3, is 18
B. The number of orbitals in a given f subshell is 7
C. For n=4, the largest possible value of I is 3
D. For n=4, the largest possible value of mI is 2

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Correct Answer: D. For n=4, the largest possible value of mI is 2

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