Question

Mention two indicators and their natural colour in acid and basic media respectivelu

Answer 1

Answer:

:

(a) Methyl orange: Methyl orange changes its colour to yellow when added to a base or an alkali.

(b) Litmus paper: Red litmus paper turns blue, whereas blue litmus paper remains blue in a base or an alkali.

(c) Red cabbage extract: Red cabbage extract turns greenish-yellow in basic solutions

Answer 2

Answer:

Litmus, turmeric, red cabbage, China rose, etc. are some common natural indicators used widely to show the acidic or basic character of substances. Litmus: Litmus is obtained from lichens. The solution of litmus is purple in color.