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Question
"pH has great importance in our daily life". Explain by giving three examples.
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Solution
pH has great importance in our daily life:
(a) pH and plants:
Plants require a specific pH for growth. It cannot grow in too acidic soils. If soil is too acidic then its pH can be increased by adding lime:
And on the other hand, if the soil is too alkaline then its pH decreases by adding gypsum.
(b) pH and blood or digestive system:
The pH of blood is tightly regulated in the range of 7.2-7.4 and medium in our stomach is highly acidic(pH = 1.2). Sometimes stomach produces too much hydrochloric acid, it causes irritation or pain.
(c) pH and skin:
The acidic pH of the skin prevents colonisation by bacteria. Thus, it acts as a defense against infection.
(a) pH and plants:
Plants require a specific pH for growth. It cannot grow in too acidic soils. If soil is too acidic then its pH can be increased by adding lime:
And on the other hand, if the soil is too alkaline then its pH decreases by adding gypsum.
(b) pH and blood or digestive system:
The pH of blood is tightly regulated in the range of 7.2-7.4 and medium in our stomach is highly acidic(pH = 1.2). Sometimes stomach produces too much hydrochloric acid, it causes irritation or pain.
(c) pH and skin:
The acidic pH of the skin prevents colonisation by bacteria. Thus, it acts as a defense against infection.
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