what is indicator?mention it's types.
Answers
Answer:
lndicators derived from natural sources are called natural indicators. eg:- Litmus , red cabbage , turmeric , china rose petals etc.. lndicators prepared in laboratary are callwd synthetic indicators. lndicators which give different odours in acidic and basic medium.Although they may all be used for pH detection they are not all suitable for the same purpose.
Universal indicator.
Litmus.
Phenolphthalein.
Methyl orange.
Bromothymol blue.
Choice of indicator summary.
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 , turmeric
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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