Question

pH has a great importance in our daily lives explain with examples

Answer 1

pH plays an important role in our everyday life. A few examples are:-

1. In our digestive system - Hydrochloric acid is produced in the stomach to help in digesting food. However, when the amount of acid exceeds a certain limit it causes acidity and pain. This acidity can be neutralized by taking a mild base called as an antacid.

2. pH of soil – Plants grow only in soils that have a definite pH range. So, highly acidic soils are treated with quicklime or calcium carbonate to reduce its acidity.

3. Tarnished vessels – Copper vessels are tarnished due to the formation of a layer of basic copper oxide. This can be removed when it is rubbed with the citric acid from a lemon. Copper oxide forms copper citrate with citric acid and is washed away giving a shine to the vessels.

Answer 2

living organism can survive only in a narrow range of ph change our body works normally within a ph range of 7.0 to 7.8
for ex ph in our digestive system
hcl is present in the stomach helps in the digestion of food during indigested the stomach produce too much acid it cause pain and irritation to correct the disturbed ph range milk of magnesia is used as a medicine