What is Indicators?
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Substances that are used to indicate whether a substance is acid or a base are known as indicators.
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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...
HOPE IT DOES AID YOU!!
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