The compound X in the above reaction is:
| 1. | 2. | ||
| 3. | 4. |
The oxidation of benzene by V2O5 in the presence of air produces:
| 1. | Benzoic anhydride | 2. | Maleic anhydride |
| 3. | Benzoic acid | 4. | Benzaldehyde |
A compound among the following that does not undergo Friedel-Craft's reaction easily is:
1. Cumene
2. Xylene
3. Nitrobenzene
4. Toluene
Nitrobenzene can be prepared from benzene by using a mixture of conc. HNO3 and conc. H2SO4. In the mixture, nitric acid acts as a/an:
| 1. | Reducing agent | 2. | Acid |
| 3. | Base | 4. | Catalyst |
The deactivating but ortho-para directing benzene ring substituent among the following is-
1. -N=O
2. -OCH3
3. -COCH3
4. -NO2
The major product obtained in the given reaction is:
| 1. | 2. | ||
| 3. | 4. |
The product B in the above-mentioned reaction is:
| 1. | ![]() |
2. | ![]() |
| 3. | ![]() |
4. | ![]() |
The compounds among the following that can be generated by Friedel craft acylation is/are -
| I. | |
| II. | |
| III. | |
| IV. |
| 1. | II, III and IV | 2. | I, III and IV |
| 3. | I and II | 4. | II and III |
Cyclopentadiene is much more acidic than cyclopentane, because:
| 1. | Cyclopentadiene has conjugated double bonds. |
| 2. | Cyclopentadiene has both sp2 and sp3 hybridized carbon atoms. |
| 3. | Cyclopentadiene is a strain-free cyclic system. |
| 4. | Cyclopentadienyl anion ion, the conjugate base of cyclopentadiene, is an aromatic species and hence has higher stability. |

The product (B) in the above-mentioned reaction is:
| 1. | ![]() |
2. | ![]() |
| 3. | ![]() |
4. | ![]() |