Question

1) From which substances natural indicators are prepared ?​

Answer 1

Explanation:

lichen.......... .....

Answer 2

Answer:

natural indicator is a type of indicator that can be found naturallyand can determine whether the substance is an acidic substance or a basic substance. some ex are red cabbage,turmeric,grape juice,curry powder,beetroots, onion,tomato and etc.

some flowers like hydrangeas can determine the acidity or bacidity of soil.these flowers become blue if the soil is acidic, purple if the soil is neutral, pink if the soil is basic. the intensity of colour is depend on amount of acid or Base present in soil.

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