Question

write full form of PH and importance of PH in daily life ? give reason why does decay start when pH of mouth is lower than 5.5 answer in 50- to 75 words​

Answer 1

When the pH in the mouth falls below 5.5, tooth decay starts. Bacteria present in the mouth produce acid by degradation of sugar and food particles which remain in the mouth after eating. The acid produced in the mouth attack the enamel thereby, creating tooth decay.

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Answer 2

Answer: Potential of hydrogen

In chemistry potential of hydrogen is a scale used to specify the acidity of basicillty of an Aquious solution acidic solution are measured to have lower potential of hydrogen PH value then bases or alkaline solution.

Tooth decay a start when the PH of the mouth is lower than 5.5 tooth enamelmade up of calcium phosphate is the hardest substance in the body this is because the acid is strong enough to attack the enamel of our teeth and corrode it. This start tooth decay. It does not dissolve in in water but it corroded when the PH in the mouth produce acid by degradation of sugar and food particles remaining in the mouth after eating the acid is strong enough to attack the enamel of our teeth and corrode it.