NCERT Question 8 (b) - Chapter 5 Class 7 - Acid, Bases and Salt

Last updated at Dec. 13, 2024 by

Explain why:

(b) Calamine solution is applied on the skin when an ant bites.

 

Answer:

When an ant bites, it injects the acid into the skin.

  • The acid is called Formic acid . It causes irritation .
  • The effect of the acid can be neutralised by rubbing a mild base like moist baking soda (sodium hydrogen carbonate).
  • Calamine is also a mild base that can be used to neutralise the effect of he acid.
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