Importance of pH in our daily life:
(a) pH and Plants: Proper pH of soil is required for healthy growth of plants. It should not be too acidic or too basic.
(b) pH in the digestive system: Human body secrets hydrochloric acid which aids in digestion.
Hyperacidity: The Condition of excess acid in the stomach. Hyperacidity can be cured by taking ant-acid tablets or suspensions.
(c) pH and tooth decay: Tooth enamel which is the hardest substance in our body is corroded when the pH of the mouth is below 5.5. Cleaning of teeth using toothpaste helps in preventing tooth decay. Toothpastes are basic in nature, therefore neutralize the excess acid in the mouth and thus prevent tooth decay.