| 1 |
Benzene cannot undergo |
- A. Substitution reactions
- B. addition reactions
- C. oxidation reactions
- D. elimination reactions
|
| 2 |
Which group when attached with benzene increases electron density of ring. |
- A. -COOH
- B. -NO
- C. -CHO
- D. -CH3
|
| 3 |
Which compound is the most reactive one |
- A. benzene
- B. ethene
- C. ethane
- D. ethyne
|
| 4 |
Hydrolysis of benzene sulphonic acid with superheated steam or by boiling with dil HCl gives. |
- A. Toluene
- B. Benzene
- C. Xylene
- D. Chlorobenzene
|
| 5 |
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
|
| 6 |
Effect of substituent on benzene ring is due to |
- A. Resonance
- B. Inductive effect
- C. Both a and b
- D. Neither a nor b
|
| 7 |
Phenol when distilled with zinc dust gives. |
- A. Toluene
- B. Benzaldehyde
- C. Benzoic acid
- D. Benzene
|
| 8 |
Which compound form benzoic acid on oxidation with strong oxidizing agent. |
- A. Toluene
- B. Ethyl benzene
- C. n propyl benzene
- D. All
|
| 9 |
Which of the following is Ortho and Para directing group |
- A. -I
- B. -CHO
- C. -COR
- D. -NH<sub>2</sub>
|
| 10 |
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
|
