Chemistry, asked by chinnu1q2wadcn, 1 month ago

ASSERTION: Tooth decay starts when pH of mouth is lower than 5.5 REASON : Tooth enamel is made up of calcium phosphate ( hardest substance in body) does not dissolve in water but corrodes when pH is lower than 5.5 due to acids produced by degradation of food particles by bacteria.

Answers

Answered by ronakgolu007

1

Answer:

both assertion and reason is true or correct

Explanation:

hope you understand

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