Important Compounds & Reactions

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1.
The n-factor of KMnO4 in acidic medium is:
2.
KMnO4 cannot be used in HCl medium for titrations because:
3.
KMnO4 acts as a self-indicator because:
4.
In the titration of oxalic acid with KMnO4 in acidic medium, the reaction is carried out at 60-70°C. This is because:
5.
The colour of K2Cr2O7 solution changes from orange to yellow when:

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