To protect tooth decay we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is
  1. acidic
  2. neutral
  3. basic
  4. corrosive


Correct Answer: (c) basic 

Explanation: Teeth become acidic in nature because of bacterial activity in the mouth. Hence, toothpaste will be basic in nature to neutralize its activity.

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Updated on: 10-Oct-2022

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