MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Organic Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the greatest angle in pyridine ring? |
| A. | 116° |
| B. | 140° |
| C. | 124° |
| D. | 118° |
| Answer» D. 118° | |
| 2. |
Which of the following is the correct range for the bond length in the pyridine molecule? |
| A. | 1.34 – 1.40 A° |
| B. | 1.24 – 1.32 A° |
| C. | 2.4 – 2.49 A° |
| D. | 1.02 – 1.17 A° |
| Answer» B. 1.24 – 1.32 A° | |
| 3. |
WHICH_OF_THE_FOLLOWING_IS_THE_CORRECT_RANGE_FOR_THE_BOND_LENGTH_IN_THE_PYRIDINE_MOLECULE??$ |
| A. | 1.34 – 1.40 A° |
| B. | 1.24 – 1.32 A° |
| C. | 2.4 – 2.49 A° |
| D. | 1.02 – 1.17 A° |
| Answer» B. 1.24 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 1.32 A¬¨¬®‚Äö√†√ª | |
| 4. |
What_is_the_greatest_angle_in_pyridine_ring?$ |
| A. | 116° |
| B. | 140° |
| C. | 124° |
| D. | 118° |
| Answer» D. 118¬¨¬®‚Äö√†√ª | |
| 5. |
What is the dipole moment of the pyridine? |
| A. | Zero |
| B. | 2.2 D |
| C. | 1.17 D |
| D. | 4.3 D |
| Answer» C. 1.17 D | |
| 6. |
What is the smallest angle in pyridine ring? |
| A. | 116.7° |
| B. | 115.0° |
| C. | 124.0° |
| D. | 118.1° |
| Answer» B. 115.0¬¨¬®‚Äö√†√ª | |
| 7. |
Pyridine come under which category of heterocycle classification on the basis of chemical behavior? |
| A. | -excessive heterocycle |
| B. | -deficient heterocycle |
| C. | -equivalent heterocycle |
| D. | can’t say about the five membered rings |
| Answer» C. -equivalent heterocycle | |
| 8. |
How many number of resonating structure stabilises a pyridine molecule? |
| A. | 4 |
| B. | 5 |
| C. | 6 |
| D. | 7 |
| Answer» C. 6 | |
| 9. |
Pyridine is a not a planner compound? |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
The electron of Nitrogen participating in the resonance in pyridine is present in which orbital? |
| A. | p-orbital |
| B. | sp2-orbital |
| C. | sp3-orbital |
| D. | sp -orbital |
| Answer» C. sp3-orbital | |
| 11. |
Which element is present as hetero atom in pyridine? |
| A. | Sulphur |
| B. | Nitrogen |
| C. | Oxygen |
| D. | Sulphur and nitrogen |
| Answer» C. Oxygen | |
| 12. |
Pyridine is a which type of heterocyclic compound from the following options? |
| A. | Six membered heterocyclic compound |
| B. | Seven membered heterocyclic compound |
| C. | Four membered heterocyclic compound |
| D. | Five membered heterocyclic compound |
| Answer» B. Seven membered heterocyclic compound | |