What is acid base indicator ? Name the different types of indicators?
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Acid - Base Indicators and Titrations. Acid - Base indicators(also known as pH indicators) are substances which change colour with pH. They are usually weakacids or bases, which when dissolved in water dissociate slightly and form ions. Consider anindicator which is a weak acid, with the formula HIn.
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- What is Acid-Base Indicator?
Acid-Base Indicator is a Chemical Substance or determinant which determines whether a compound/element/mixture is acidic in nature or it is basic.
- ACIDS, BASES AND SALTS
- Acid are the substances which gives H⁺ (Hydrogen/Hydronium Ion) ion while they disassociate in water.
They are corrosive as well as sour in taste. They turns Blue Litmus Red.
*Litmus is also an indicator obtained from Lichens.
pH of such substance lies in [1,7)
- Base are the Substances which gives OH⁻ (Hydroxide) ion while it disassociate in water.
These are also corrosive and bitter in taste which turns red litmus to blue.
pH of such substance lies between (7,14]
- Salts are the substances which are formed due to the reaction between an acid and a base known as Neutralisation reaction.
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