MCQOPTIONS
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MCQOPTIONS
This section includes 64 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Propagation of |
| A. | photons |
| B. | protons |
| C. | neutrons |
| D. | electrons |
| Answer» B. protons | |
| 52. |
Whose experiment proved that the |
| A. | James clark maxwell |
| B. | Michelson and Morley |
| C. | Miller and Stanley |
| D. | Werner Heisenberg |
| Answer» C. Miller and Stanley | |
| 53. |
7Li3 |
| A. | Isotopes |
| B. | Isobar |
| C. | Isotones |
| D. | None |
| Answer» D. None | |
| 54. |
An atom has 7 electrons in its M-Shell and contains 18 neutrons in its nucleus. What is its mass number ? |
| A. | 25 |
| B. | 27 |
| C. | 35 |
| D. | 43 |
| Answer» D. 43 | |
| 55. |
Nuclear particles responsible for holding all nucleons together are |
| A. | electrons |
| B. | neutrons |
| C. | positrons |
| D. | mesons |
| Answer» E. | |
| 56. |
35 |
| A. | Isotopes |
| B. | Isomers |
| C. | Isotones |
| D. | None |
| Answer» B. Isomers | |
| 57. |
The -particle carries two positive charges. Its mass is very nearly equal to that of |
| A. | two protons |
| B. | an atom of helium |
| C. | sum of masses of two positrons and two neutrons |
| D. | two positrons as each positron carries a single positive charge |
| Answer» C. sum of masses of two positrons and two neutrons | |
| 58. |
Match colunm-I and column-II |
| A. | A-3, B-4, C-2, D-1 |
| B. | A-2, B-4, C-1, D-2 |
| C. | A-2, B-1, C-3, D-4 |
| D. | A-3, B-2, C-4, D-1 |
| Answer» E. | |
| 59. |
The last orgin of argon has..........electrons. |
| A. | 2 |
| B. | 6 |
| C. | 8 |
| D. | 18 |
| Answer» D. 18 | |
| 60. |
BY which one of the following, an old written material which can not be read easily, can be read ? |
| A. | y - rays |
| B. | x - rays |
| C. | IR - rays |
| D. | Radio frequency waves |
| Answer» C. IR - rays | |
| 61. |
1 |
| A. | Deutarium |
| B. | Tritium |
| C. | Protium |
| D. | None of these |
| Answer» D. None of these | |
| 62. |
Which orbital is dum-bell shaped ? |
| A. | s-orbital |
| B. | p-orgital |
| C. | d-orbital |
| D. | f-orbital |
| Answer» C. d-orbital | |
| 63. |
"The position and velocity of a small particle like electron can not be simultaneously determined." This statement is |
| A. | Heisenberg uncertainty principle |
| B. | Pauli's exclusion principle |
| C. | Aufbau principle |
| D. | de-Broglie wave nature of electron |
| Answer» B. Pauli's exclusion principle | |
| 64. |
The concept of dual nature of radiation was proposed by |
| A. | Max planck |
| B. | de-Broglie |
| C. | Heisenberg |
| D. | Pauling |
| Answer» C. Heisenberg | |