Which of the following is the strongest oxidising agent Options: A . &nbsp B r O − 3 / B r 2 + , E 0 = + 1.50 B . &nbsp F e 3 + / F e 2 + , E 0 = + 0.76 C . &nbsp M n O − 4 / M n 2 + , E 0 = + 1.52 D . &nbsp C r 2 O 2 − 7 / C r 3 + , E 0 = + 1.33

Which of the following is the strongest oxidising agent

Discussion Forum : Redox Reactions

Question -

Which of the following is the strongest oxidising agent

Options:

A .

B r O_{3}^{-} / B r^{2 +}, E^{0} = + 1.50

B .

F e^{3 +} / F e^{2 +}, E^{0} = + 0.76

C .

M n O_{4}^{-} / M n^{2 +}, E^{0} = + 1.52

D .

C r_{2} O_{7}^{2 -} / C r^{3 +}, E^{0} = + 1.33

Answer: Option C
:
C

Reduction potential is a measure of the tendency of a chemical species to acquire electrons and thereby be reduced. Measured in volts (V), or millivolts (mV) - each species has its own intrinsic reduction potential. The more positive the potential, the greater the species' affinity for electrons and tendency to be reduced. Hence - among the given options - $M n O_{4}^{-}$ is strongest oxidising agent. In other words - $M n O_{4}^{-}$ has the best affinity to get reduced and thus has the greatest ability to oxidise.

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Discussion Forum : Redox Reactions

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