Explain ostwald theory of indicators?
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Theory of acid-base indicators: Twotheories have been proposed toexplain the change of colour of acid-base indicators with change in pH. 1.Ostwald's theory: According to thistheory: ... (b) The ionisation of theindicator is largely affected in acids and bases as it is either a weak acid or a weak base.
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*According to this theory all indicators are either weak organic acid or base.
*Every indicator has light colour in its unionised form and dark colour in ionised form.
*Every indicator has one colour in acidic medium and an altogether different colour in basic medium due to common ion effect and odd ion effect.
Hope This Helps You!!✌
*Every indicator has light colour in its unionised form and dark colour in ionised form.
*Every indicator has one colour in acidic medium and an altogether different colour in basic medium due to common ion effect and odd ion effect.
Hope This Helps You!!✌
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