MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In methanol, the O-H bond length is smaller than the C-O bond length. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The C-O-C bond angle in ethers is _______ |
| A. | lesser than 109.5 |
| B. | 109.5 |
| C. | greater than 109.5 |
| D. | 180 |
| Answer» D. 180 | |
| 3. |
If the dipole moment of methanol is 1.71D, predict the dipole moment of phenol. |
| A. | 1.54D |
| B. | 1.71D |
| C. | 1.89D |
| D. | 1.96D |
| Answer» B. 1.71D | |
| 4. |
Which of the following is not a correct reason for the C-O bond length in phenol to be less than that in methanol? |
| A. | Partial double bond character of C-O bond |
| B. | Conjugation of lone pair of electrons with the aromatic ring |
| C. | sp<sup>2</sup> hybridised sate of carbon of C-O bond |
| D. | Repulsion between the electron lone pairs of oxygen |
| Answer» E. | |
| 5. |
If A and B are the C-O bond lengths in methanol and phenol respectively, what is the relationship between A and B? |
| A. | A>B |
| B. | A<B |
| C. | A=B |
| D. | A B |
| Answer» B. A<B | |
| 6. |
What is the value of C-O-H bond angle in phenol? |
| A. | 108 |
| B. | 108.9 |
| C. | 109 |
| D. | 109.8 |
| Answer» D. 109.8 | |
| 7. |
How many lone pairs of electrons does O atom have in methanol? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 4 |
| Answer» D. 4 | |