Q.

During estimation of oxalic acid Vs KMnO4, self indicator is :

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a

KMnO4

b

MnSO4

c

oxalic acid

d

K2SO4

answer is A.

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Detailed Solution

Self indicator is KMnO4 during estimation of oxalic acid vs KMnO4. Colour changes from purple to colourless.

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