| 1 |
Phenol when distilled with zinc dust gives. |
- A. Toluene
- B. Benzaldehyde
- C. Benzoic acid
- D. Benzene
|
| 2 |
Which compound is the most reactive one |
- A. benzene
- B. ethene
- C. ethane
- D. ethyne
|
| 3 |
Which of the following is Ortho and Para directing group |
- A. -I
- B. -CHO
- C. -COR
- D. -NH<sub>2</sub>
|
| 4 |
Which one is not electrophile |
- A. BF3
- B. SO3
- C. AlCl3
- D. NH3
|
| 5 |
Amongst the following, the compound of that can be most readily sulphonated is |
- A. Toluene
- B. Benzene
- C. Nitro-benzene
- D. Chloro-benzene
|
| 6 |
Which of the following species is ortho and para director. |
- A. CHO
- B. SO3H
- C. NO2
- D. Cl
|
| 7 |
Chlorobenzene on nitration with conc. HNO3 and Conc. H2SO4 gives. |
- A. m -chloronitrobenzene
- B. o and p chloronitrobenzene
- C. o and m chloronitrobenzene
- D. mixture of O2 m and p chloronitrobenzene
|
| 8 |
Benzene can not undergo. |
- A. Substitution reactions
- B. Addition reactions
- C. Oxidation reactions
- D. Elimination reactions
|
| 9 |
Which compound form benzoic acid on oxidation with strong oxidizing agent. |
- A. Toluene
- B. Ethyl benzene
- C. n propyl benzene
- D. All
|
| 10 |
Which group when attached with benzene increases electron density of ring. |
- A. -COOH
- B. -NO
- C. -CHO
- D. -CH3
|
