Sikshoday

Untitled 01-Aug-2022

Q. 1. Quantum numbers give the information about ________ of atom.

A. Electrons
B. Proton
C. Neutron
D. Atom

Q. 2. How many types of quantum number ?

A. 1
B. 2
C. 3
D. 4

Q. 3. Quantum number is denoted by -

A. Q
B. N
C. L
D. M

Q. 4. The value of m dependent upon the value of l and equation is :-

A. m=2l+1
B. m=2l-1
C. m=2l
D. None of them

Q. 5. The value of spin quantum number are :-

A. +1/2
B. -1/2
C. Both
D. None of them

Q. 6. Azimuthal quantum number provide the information regarding the ___________ of orbital.

A. Energy
B. Size
C. Shape
D. Orientation

Q. 7. The value of azimuthal quantum number l for n=2 will be :-

A. 0, 1
B. 1,2
C. -1,+1
D. 2

Q. 8. Spin quantum number Is denoted by ________.

A. S
B. P
C. C
D. Q

Q. 9. Which quantum number give the information about orientation of electron ?

A. Spin quantum number
B. Principle quantum number
C. Magnetic quantum number
D. Azimuthal quantum number

Q. 10. Azimuthal quantum number gives the information about _________ of electron.

A. Orientation
B. Subshell
C. Shell
D. Direction

Q. 11. l can have all possible whole number values from 0 to

A. n-1
B. n+1
C. 2n
D. 2n-3

Q. 12. if l = 2 , then it is designated by :-

A. s
B. p
C. d
D. f

Q. 13. Maximum number of electron in subshell :-

A. 2 ( 2l+1 )
B. 2 ( 2l-1 )
C. 2 • 2l
D. None of them

Q. 14. Principle quantum number gives the information about :-

A. Orbit
B. Orbital
C. Subshell
D. None of them

Q. 15. Maximum number of electron in a orbit :-

A. 2n
B. 2 n²
C. n²
D. 3n²

Q. 16. Which of the following quantum numbers can distinguish between two electrons present in the same orbital ?

A. Azimuthal quantum number
B. Principle quantum number
C. Magnetic quantum number
D. Spin quantum number

Q. 17. The maximum number of electron with l=3 is :-

A. 14
B. 2
C. 10
D. 6

Q.18. Which of the following quantum numbers tells the three dimensional shape of an atomic orbital :-

A. Azimuthal quantum number
B. Principle quantum number
C. Spin quantum number
D. Magnetic quantum number

Q.19. the value of azimuthal quantum number starts from :-

A. 2
B. 1
C. 0
D. -1

Q. 20. Which of the following quantum number governs the spatial orientation of an atomic orbital ?

A. Magnetic quantum number
B. Spin quantum number
C. Azimuthal quantum number
D. Principle quantum number