Question

Define indicator write example for natural and artificial indicator and their effect in acidic and basic medium

Answer 1

Answer:

Some examples of natural indicators are turmeric, grape juice, red cabbage, cherries, onion, beetroot etc. Synthetic indicators are indicators which are synthesized in the laboratory. Examples of synthetic indicators include phenolphthalein, methyl orange etc. litmus paper is also an example of synthetic indicator.

turmeric = base-indicator.

China rose = acidic - indicator.

Red cabbage = acidic - indicator.

Phenolphthalein = weak acid - indicator.

Methyl Orange = weak acid - indicator.

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