Symbols, Formulae and Simple Chemical Equations NDA Questions

NDA Chemistry

Symbols, Formulae and Simple Chemical Equations MCQ Questions


13.
The number of radial node is _____ for 3p orbital.
A.
3
B.
2
C.
1
D.
4
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ANSWER :
C. 1
14.
The number of radial node is _____ for 4p orbital.
A.
3
B.
2
C.
1
D.
4
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ANSWER :
B. 2
15.
What is the formula for number of nodes?
A.
n-2
B.
n-1
C.
n+1
D.
n+2
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ANSWER :
A. n-2
16.
The main reason for having different energies of the subshells is the mutual _____ among the electrons in multielectron atoms.
A.
Attraction
B.
Repulsion
C.
Generation
D.
Spin
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ANSWER :
B. Repulsion
17.
The energy of an electron in a hydrogen atom is determined solely by the _____
A.
Magnetic quantum number
B.
Azimuthal quantum number
C.
Principal quantum number
D.
None of these
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ANSWER :
C. Principal quantum number
18.
The net positive charge experienced by the outer electrons is known as _____
A.
Repulsive force
B.
Nucleus
C.
Effective nuclear charge
D.
Outer shell energy
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ANSWER :
C. Effective nuclear charge