- The Hydrogen present in acids is responsible for their acidic behaviour.
- An acidic substance donates its H+ ions in aqueous solution which causes an imbalance of H+ and OH- ions concentration and make the overall solution acidic.
Basic:
- The Hydroxide ions present in bases is responsible for their basic behaviour.
- A basic substance donates its OH- ions in aqueous solution which causes an imbalance of H+ and OH- ions concentration and makes the overall solution basic.



