MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Write the values for l, n, and m for 3,1,0? |
| A. | 1, 3, 0 |
| B. | 3, 1, 0 |
| C. | 0, 3, 1 |
| D. | 1, 0, 3 |
| Answer» B. 3, 1, 0 | |
| 2. |
How many electrons can exist with the principal quantum number s value as 4? |
| A. | 16 |
| B. | 4 |
| C. | 32 |
| D. | 12 |
| Answer» D. 12 | |
| 3. |
No two electrons have the same set of all four quantum numbers. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
According to the Aufbau s principle, which of the following orbital should be filled first? |
| A. | 5d |
| B. | 4p |
| C. | 3p |
| D. | 2s |
| Answer» E. | |
| 5. |
Which of the following set of quantum numbers is not valid? |
| A. | n = 5, l = 2, m = 0, s = 1/2 |
| B. | n = 1, l = 2, m = 0, s = 1/2 |
| C. | n = 5, l = 3, m = 2, s = 1/2 |
| D. | n = 5, l = 2, m = 0, s = -1/2 |
| Answer» C. n = 5, l = 3, m = 2, s = 1/2 | |
| 6. |
Total number of nodes for 3d orbital is ________ |
| A. | 3 |
| B. | 2 |
| C. | 1 |
| D. | 0 |
| Answer» C. 1 | |
| 7. |
What is the magnetic quantum number of the orbital 2pz? |
| A. | 1 |
| B. | 1 |
| C. | -1 |
| D. | 0 |
| Answer» E. | |
| 8. |
What is the shape the orbital, whose l is 1? |
| A. | Spherical |
| B. | Dumbbell |
| C. | Double dumbbell |
| D. | Complex |
| Answer» C. Double dumbbell | |
| 9. |
The principal quantum number describes ____ |
| A. | energy and size of the orbit |
| B. | the shape of the orbital |
| C. | spatial orientation of the orbital |
| D. | the spin of the electron |
| Answer» B. the shape of the orbital | |