Question

An example of a natural indicator -(a)methyl orange (b)ink (c)phenolphthalein (d)litmus

Answer 1

Hi friend,

The correct option for the question is (D) Litmus.It is extracted from Lichens.It turns red when acid solution is added to it and turns blue when added in a base solution.Since it is extracted from Lichens it's a natural indicator.

Hope it helped you.......................

Answer 2

(d)litmus
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litmus is an natural indicator as it is extracted from litchens which is an symbiotic association of algae and fungi
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