Question

explain the terms indicators and also name 2 inticators​

Answer 1

INDICATORS

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An indicator is a substance that changes its colour in acidic and basic medium.An indicator shows one colour in acidic medium and different colour in basic medium so that they are called indicators.

eg:-Litmus , turmeric

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There are 3 types of indicators》》

● Natural lndicators

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lndicators derived from natural sources are called natural indicators.

eg:- Litmus , red cabbage , turmeric , china rose petals etc..

● Synthetic indicators

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lndicators prepared in laboratary are callwd synthetic indicators.

eg:- Phenophtaline , methyl orange etc..

● Olfactory indicators

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lndicators which give different odours in acidic and basic medium.

eg:-Onion , vanila essence etc...

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Answer 2

Answer:

An indicator is a substance that changes its colour in acidic and basic medium.An indicator shows one colour in acidic medium and different colour in basic medium so that they are called indicators.

eg:- litmus,termeric