MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
In Cannizaro reaction, two molecules of aldehydes are reacted to produce ___________ |
| A. | Alcohol only |
| B. | Carboxylic acid only |
| C. | Alcohol and carboxylic acid |
| D. | Alcohol, carboxylic acid and ketone |
| Answer» D. Alcohol, carboxylic acid and ketone | |
| 2. |
The compound that can be most readily sulphonated is ___________ |
| A. | Benzene |
| B. | Nitrobenzene |
| C. | Toluene |
| D. | Chlorobenzene |
| Answer» D. Chlorobenzene | |
| 3. |
HBr reacts fastest with ___________ |
| A. | 2-methylpropan-2-ol |
| B. | Propan-1-ol |
| C. | Propan-2-ol |
| D. | 2-methylpropan-1-ol |
| Answer» B. Propan-1-ol | |
| 4. |
Which of the following has the highest activation of the benzene ring? |
| A. | NHCOCH<sub>3</sub> |
| B. | OH |
| C. | NH<sub>2</sub> |
| D. | C<sub>6</sub>H<sub>5</sub> |
| Answer» D. C<sub>6</sub>H<sub>5</sub> | |
| 5. |
The most stable carbonium ion is ___________ |
| A. | Methyl carbonium ion |
| B. | 2<sup>0</sup> carbonium ion |
| C. | 1<sup>0</sup> carbonium ion |
| D. | 3<sup>0</sup> carbonium ion |
| Answer» E. | |
| 6. |
Which of the following is a meta directing group? |
| A. | NHCOCH<sub>3</sub> |
| B. | COOH |
| C. | OH |
| D. | OCH<sub>3</sub> |
| Answer» C. OH | |
| 7. |
A deactivating substituent group directs ___________ |
| A. | Ortho position |
| B. | Para position |
| C. | Both ortho and para positions |
| D. | Meta position |
| Answer» E. | |
| 8. |
An activating substituent group activates ___________ |
| A. | Ortho position |
| B. | Para position |
| C. | Both ortho and para positions |
| D. | Meta position |
| Answer» C. Both ortho and para positions | |