Question

Indicators change their colour when added to a solution containing an
acidic or a basic substance. Turmeric, litmus, China rose petals (Gudha
etc., are some naturally occurring indicators.
Naturally occurring indicator litmus
A) Is extracted from lichens
B) has available as red and blue litmus paper
C) Has purple colour in distilled water
D) All the above are correct​

Answer 1

Answer:These substances are known as indicators. The indicators change their colour when added to a solution containing an acidic or a basic substance. Turmeric, litmus, china rosepetals (Gudhal), etc., are some of the naturally occurring indicators.

Explanation:

Answer 2

Explanation:

Indicators change their colour when added to a solution containing an acidic or a basic substance. turmeric, litmus, China rose petals (gudha etc., are some naturally occurring indicators. naturally occurring indicators litmus = B) has available as red and blue litmus paper