The different between acid and base are given below:
| S.N | Acid | S.N | Base |
| 1. | Acid is the substance when dissolved in water, increases the concentration of H+ ions. | 1. | The base is the substance when dissolved in water, increase the concentration of OH- ions. |
| 2. | Acids are the proton donor. | 2. | Base are the electron pair donor. |
| 3. | Turns blue litmus paper to red. | 3. | Turns red litmus paper to blue. |
| 4. | Acids dissociate to give free hydrogen ions (H+) after mixing in water. | 4. | Bases dissociate to give free hydroxide ions (OH-) after mixing in water. |
| 5. | Hydrochloric acid (HCl), Sulphuric acid (H2SO4), Nitric acid (HNO3), Carbonic acid (H2CO3). | 5. | Ammonium hydroxide (NH4OH), Calcium hydroxide (Ca(OH)2), Sodium hydroxide (NaOH). |
