| 1 |
Which of the following species is ortho and para director. |
- A. CHO
- B. SO3H
- C. NO2
- D. Cl
|
| 2 |
Aromatic compounds burns with sooty flame because. |
- A. They have high percentage of hydrogen
- B. The have a right structure
- C. The have high percentage of carbon
- D. The resist reaction with air
|
| 3 |
Phenol when distilled with zinc dust gives. |
- A. Toluene
- B. Benzaldehyde
- C. Benzoic acid
- D. Benzene
|
| 4 |
During Nitration of Benzene the active nitrating agent is |
- A. NO<sub>3</sub>
- B. NO<sub>2</sub><sup>+</sup>
- C. NO<sub>2</sub>
- D. HNO<sub>3</sub>
|
| 5 |
The conversion of benzene to chlorobenzene is a |
- A. Addition reaction
- B. Elimination reaction
- C. Substitution reaction
- D. Dehydration process
|
| 6 |
Amongst the following, the compound that can be most readily sulphonated is |
- A. toluene
- B. benzene
- C. nitrobenzene
- D. chlorobenzene
|
| 7 |
The resonating contributing structures of Benzene are |
|
| 8 |
Which group when attached with benzene increases electron density of ring. |
- A. -COOH
- B. -NO
- C. -CHO
- D. -CH3
|
| 9 |
Which one of the following species is meta director if present at benzene ring. |
- A. -NO2
- B. -Cl
- C. -CH3
- D. -OH
|
| 10 |
During nitration of benzene, the active nitrating agent is |
- A. NO<sub>3</sub>
- B. NO<sub>2</sub><sup>+</sup>
- C. NO<sub>2</sub><sup>-</sup>
- D. HNO<sub>3</sub>
|
