MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Phenyl group show __________ |
| A. | (+M) effect |
| B. | (+E) effect |
| C. | (+I) effect |
| D. | (-M) effect |
| Answer» E. | |
| 2. |
Greater the number of resonating structures for a given intermediate __________ |
| A. | Less will be its stability |
| B. | More will be its stability |
| C. | It will not affect its stability |
| D. | None of the mentioned |
| Answer» C. It will not affect its stability | |
| 3. |
Dipole moment of CH3-CH2-Cl > CH2=CH-Cl. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Which of the following is an application of the mesomeric effect? |
| A. | Dipole moment |
| B. | Strength of acids and bases |
| C. | Bond length |
| D. | All of the mentioned |
| Answer» E. | |
| 5. |
The resonance energy is defined as a difference in energy between __________ |
| A. | Two consecutive resonating structures |
| B. | Resonance hybrid and most unstable resonating structure |
| C. | Resonance hybrid and most stable resonating structure |
| D. | First and last resonating structures |
| Answer» D. First and last resonating structures | |
| 6. |
The phenomenon in which 2 or more structures, involving identical position of atoms can be written for a particular molecule, is called __________ |
| A. | Conjugation |
| B. | Resonance |
| C. | Hyper conjugation |
| D. | Vibration |
| Answer» C. Hyper conjugation | |
| 7. |
In mesomeric effect, the electrons are transferred from __________ |
| A. | A multiple bonds to an atom |
| B. | A multiple bonds to a single covalent bond |
| C. | An atom with a lone pair to the adjacent single covalent bond |
| D. | All of the mentioned |
| Answer» E. | |