Question

Vame the sources from which litmus solution is obtained. What is the
s the distilled water acidic/basic/neutral? Give reasons.
Yhy is calamine solution applied on the skin when an ant bites?
giv​

Answer 1

Answer:

Litmus solution is obtained from lichen.

Distilled water is neutral. You can test it by dipping the litmus paper into it. It shows no colour change when dipped in distilled water. Therefore it is neutral.

Calamine solution is applied when an ant bites because when ant bites it injects an acid into our body. Calamine solution is basic in nature therefore it neutralizes the effect of acid that ant injects into our body.

Answer 2

Answer:

 Litmus solution is obtained from lichens. This solution is used as an indicator to distinguish between acids and bases.

When an ant bites it basically injects formic acid into the skin. Calamine solution contains zinc carbonate and is basic in nature. When applied on the skin, It neutralizes the affect of formic acid providing relief.

I have a test of same tomorrow this question helped me revise

Also happy to help (: