| Electrophilic Reagents | Nucleophilic Reagents |
| 1. These are electron loving species. | 1. These are nucleus loving species |
| 2. These are electron deficient species. | 2. These are electron rich species. |
| 3. They attack the site of high electron density in the substrate. | 3. They attack the site of low electron density in the substarte. |
| 4. They may be +vely charged ions (cations) or neutral molecules. | 4. They may be negatively charged ions (anions) or neutral molecules. |
| 5. They possess an atom with incomplete octet. | 5. They possess an atom withlone pair of electrons. |
| 6. They are Lewis acids. | 6. They are Lewis bases. |
| 7. They accept an electron pair from the substrate to form a covalent bond. | 7. They done an electron pair to the substrate to form a covalent bond. |
