Question

What is the fullform of pH and Importance of pH in daily life?

Give reason why does tooth decay start when pH of mouth is

lower than 5.5​

Answer 1

Bacteria in the mouth create acids after eating through the oxidation of sugar and food particles in the mouth. Tooth decay starts when the mouth's pH is below 5.5......Since plaque coats the teeth, saliva can not reach the tooth layer to neutralize the acid....

Answer 2

full form of ph

(PH- potential hydrogen , power of hydrogen)

In chemistry ph is a scale used to specify the acidity of an aqueous solution.