MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is inversely proportional to the chemical shifts positions (δ)? |
| A. | Frequency of unknown group of protons |
| B. | Frequency of TMS |
| C. | Operating frequency of the instrument |
| D. | All of the mentioned |
| Answer» D. All of the mentioned | |
| 2. |
In how many ways –CH3 protons can couple with the protons on adjacent carbon atom relative to the external field. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 3. |
The NMR spectra of the functional isomers of the molecular formula C2H6O show _________ and _________ signals respectively. |
| A. | 1, 2 |
| B. | 1, 3 |
| C. | 1, 4 |
| D. | 1, 5 |
| Answer» C. 1, 4 | |
| 4. |
Number of NMR signals obtained in CH3COCH3 will be ____________ |
| A. | 6 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» E. | |