Q.

Compound XA, XB, XC are added into separate test tubes containing A, B, C solutions. XB react with A and C. XA does not react with any of these. XC reacts with A.Arrange the anion in the decreasing order of their oxidation.

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a

A-,B-,C-

b

B-,C-,A-

c

C-,A-,B-

d

B-,A-,C-

answer is B.

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Detailed Solution

Oxidising  tendency ∝Ielectro potentialXA → No reaction XB → A,C  XC → AOrder of electrode potential is XB < XC < XA.Order of oxidation of anion B->C->A-.
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