The correct statement(s) among the following regarding quantum numbers is -
a. | Angular quantum number determines the three-dimensional shape of the orbital |
b. | The principal quantum number determines the orientation and energy of the orbital |
c. | Magnetic quantum number determines the size of the orbital |
d. | Spin quantum number of an electron determines the orientation of the spin of the electron relative to the chosen axis |
Choose the correct option:
1. (a), (d)
2. (b), (c)
3. (c), (d)
4. (b), (d)
The graph that represents the probability density vs distance of the electron from the nucleus for 2s orbital is -
1.
2.
3.
4.
Column I |
Column II |
||
(a) |
n = 2, l =1 |
i |
= 4s |
(b) |
n = 4, l = 0 |
ii |
= 2p |
(c) |
n = 5, l = 3 |
iii |
= 3d |
(d) |
n = 3, l = 2 |
iv |
= 5f |
1. a = iv; b = ii; c = i; d = iii
2. a = ii; b = iii; c = iv; d = i
3. a = ii; b = i; c = iv; d = iii
4. a = iii; b = ii; c = i; d = iv
Match the following.
Column I |
Column II |
||
A. |
Photon |
1. |
Value is 4 for N-shell |
B. |
Electron |
2. |
Probability density |
C. | 3. |
Always positive value |
|
D. |
Principle quantum number n |
4. |
Exhibits both momentum and wavelength |
Options:
A | B | C | D | |
1. | 4 | 4 | 2,3 | 1,3 |
2. | 1 | 2 | 3 | 4 |
3. | 2,1 | 4 | 3 | 2,3 |
4. | 4 | 5 | 3 | 2 |
Match the quantum numbers with the information provided by them:
Quantum number | Information provided | ||
A. | Principal quantum number | 1. | Orientation of the orbital |
B. | Azimuthal quantum number | 2. | Energy and size of orbital |
C. | Magnetic quantum number | 3. | Spin of electron |
D. | Spin quantum number | 4. | Shape of the orbital |
A | B | C | D | |
1. | 2 | 4 | 1 | 3 |
2. | 1 | 2 | 3 | 4 |
3. | 1 | 4 | 3 | 2 |
4. | 4 | 1 | 3 | 2 |