20.
Explain the pH scale and explain its importance in everyday life.
Answers
Explanation:
plant and animal are PH sensitive
- livLiving 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 when
- pH of rainwater goes below 5.6. It is called acid rain when acid rain flows into the rivers it lower the pH of the river water and make survival of Aquatic life difficult .
ph in our digestive system
HCL present in the stomach help in the digestion of food during the in digestion the stomach produce too much acid, it causes pain and irritation to correct the disturbed pH range milk of magnesia, a mild base is used as a medicine which is also called as antacid as it reduces the effect of acid or acidity.
ph of soil
Every type of plant require a specific pH range for healthy growth therefore, the nature of soil is known first bi testing its PH and then a particular crop is grown in it. It is also suitable for selecting the fertilizer for a particular crop by knowing the pH of the soil.
Answer:
The pH scale -
It is a scale which is used to measure the concentration of hydrogen ion.
The pH scale stands for protenz which means power in German.
It has value ranging from 0 (which is very acidic) to 14 ( which is very alkaline).
pH is a number which indicates the acidic or basic nature of a solution.
Importance of pH in everyday life -
1. The plants and animals are pH sensitive.
Living organisms can live only at a narrow range of pH change.
When pH of rain water goes below 5.6 then it is called acid rain.
2. pH of soil.
every type of plant requires a specific pH range for it's healthy growth.
3. pH in our digestive system.
HCL is present in the stomach which helps in digestion of food.
If too much acid is produced then it causes pain and irritation. So to reduce it antacid (a mild base) is used to reduce the effect of acid.
Pure water is neutral.
Because of the absence of the free ions.
