Question 13 - MCQs from NCERT Exemplar - Chapter 2 Class 10 - Acids, Bases and Salts

Last updated at August 14, 2026 by

To protect tooth decay we are advised to brush our teeth regularly. The nature of the tooth paste commonly used is

(A) acidic

(B) neutral

(C) basic

(D) corrosive

 

Answer

Tooth Decay - Teachoo.jpg

  • Tooth decay is caused due to the acids produced by bacteria which degrade the enamel.
  • In order to prevent this, we use toothpastes containing base in them so that this neutralize the acids produced by bacteria 

 

So, the correct answer is (c) basic

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