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Question
Which one of the following act as a self-indicators ?
Which one of the following act as a self-indicators ?
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Solution
The correct option is A Potassium permanganate
Potassium permanganate(KMnO4) act as a self-indicator.
When Potassium permanganateKMnO4 used as a titrant against solutions like oxalic acid and ferrous ammonium sulphate. KMnO4 oxidises these standard solutions.
as soon as the end point is reached and the KMnO4 is in excess, the solution has a permanent pale pink sas there is no more standard solution left to oxidise.
Thus KMnO4 act as a self- indicator.
Potassium permanganate(KMnO4) act as a self-indicator.
When Potassium permanganateKMnO4 used as a titrant against solutions like oxalic acid and ferrous ammonium sulphate. KMnO4 oxidises these standard solutions.
as soon as the end point is reached and the KMnO4 is in excess, the solution has a permanent pale pink sas there is no more standard solution left to oxidise.
Thus KMnO4 act as a self- indicator.
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