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Question

Toothpaste is _________ in nature.
  1. acidic
  2. basic
  3. neutral
  4. None of these

A
neutral
B
None of these
C
acidic
D
basic
Solution
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The pH in our mouth is 5.5 which is slightly acidic. If the pH in our mouth decreases it results in tooth decay due to the formation of certain acids. Toothpaste is basic in nature which neutralizes the acid and protects from tooth decay.

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