Concept of Atomic Orbitals as One-Electron Wave Functions... NEET Questions

Physical Chemistry - Atomic Structure

Concept of Atomic Orbitals as One-Electron Wave Functions... MCQ Questions


7.
In a 1s orbital, the probability density Ψ² is maximum at:
A.
The nucleus
B.
First excited state
C.
Second excited state
D.
At a node
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ANSWER :
A. The nucleus
8.
The radial probability density function represents:
A.
Probability of an electron at a point
B.
Probability in a small volume
C.
Probability in a spherical shell
D.
Probability in a plane
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ANSWER :
C. Probability in a spherical shell
9.
For a hydrogen atom, the radial probability distribution of the 1s orbital shows:
A.
A node at the nucleus
B.
Maximum at the nucleus
C.
A peak away from the nucleus
D.
A minimum at a finite r
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ANSWER :
B. Maximum at the nucleus
10.
What is the total number of nodes in a 2s orbital?
A.
0
B.
1
C.
2
D.
3
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ANSWER :
B. 1
11.
Which orbital has no radial nodes?
A.
1s
B.
2s
C.
3s
D.
2p
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ANSWER :
A. 1s
12.
Which orbital has one radial node?
A.
1s
B.
2s
C.
3s
D.
3p
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ANSWER :
B. 2s