pH is a great importance in our daily lives give three example to prove this
Answers
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.
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In medicines: certain diseases are diagnosed only on the basis of pH value of blood and urine
In saving tooth decay: substances like chocolates and sweets are degraded by bacteria present in our mouth .when pH falls to 5.5 tooth decay starts tooth enamel (calcium phosphate) is the hardest substance in our Bodas and it gets corroded.the saliva produced by salivary gland is slightly alkaline it helps to inc the pH to some extent but tooth paste is used to neutralise excess acid I mouth
Bee sting leaves acid in the body if baking soda a base is applied on stung area it gives relief
In digestive system HCL acid is produced in stomach which helps in digestion of food but if it becomes excess the pH falls and pain and irritation occurs to get rid of this ANTACIDS like magnesia is generally use differently to adjust the pH