define the indicator
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Explanation:-
Indicators :-
The substance which changes its colours and odour when treated with acidic , basics and neutral solution is called indicators.
There are two types of indicators :-
Natural indicator :-
They are extracted from plants and animals is called natural indicators.
like :- Lithmus paper , China rose are some natural indicators.
Artificial indicator :-
They are prepared in laboratory by using chemicals.
Ex :- Methyl orange and phenolphthalein are some artificial indicators.
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Answer:
A substance that changes its colour on coming in contact of acids or bases.
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