| 1 |
Which makes a molecule more stable. |
- A. Greater localization of pi electrons
- B. Less delocalization of pi electrons
- C. Greeter delocalization of pi electrons
- D. Less delocalization for pi electrons
|
| 2 |
Cyclic structure of benzene was proposed by |
- A. Dewar
- B. Faraday
- C. Down
- D. Kekule
|
| 3 |
Main source of aromatic compound is |
- A. Petroleum
- B. Coaltar
- C. Living organisms
- D. Dead marine animals
|
| 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 |
When acetylene is heated at 300 <sup>o</sup>C in copper tube, the product obtained is. |
- A. Benzene
- B. Alkyl benzene
- C. Ether
- D. Alcohol
|
| 6 |
Which one is not electrophile |
- A. BF3
- B. SO3
- C. AlCl3
- D. NH3
|
| 7 |
Structure of benzene is |
- A. Tetrahedral
- B. Trigonal planar
- C. Hexagonal planar
- D. Linear
|
| 8 |
Amongst the following, the compound of that can be most readily sulphonated is |
- A. Toluene
- B. Benzene
- C. Nitro-benzene
- D. Chloro-benzene
|
| 9 |
Benzene can not undergo. |
- A. Substitution reactions
- B. Addition reactions
- C. Oxidation reactions
- D. Elimination reactions
|
| 10 |
The benzene molecule contains. |
- A. Three double bonds
- B. Two double bonds
- C. One double bonds
- D. Delocalized sigma electron charge
|
