Sr. # | Questions | Answers Choice |
---|---|---|
1 | The heat of hydrogenation of most of the alkene is about | 120 kJ/mol 100 kJ/mol 140 kJ/mol 105 kJ/mol |
2 | Which one of the following is a powerful electrophile used to attack on the electrons of benzene ring? | FeCl2 Cl+ FeCl-4 Cl2 |