The organic compounds which show characteristic colours in acidic and basic solutions are called
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The organic compounds which show characteristic colours in acidic and basic solutions are called compinest
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pH indicators are weak acids that exist as natural dyes and indicate the concentration of H+ (H3O+) ions in a solution via color change. A pH value is determined from the negative logarithm of this concentration and is used to indicate the acidic, basic, or neutral character of the substance you are testing.
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