Question

Standard reduction electrode potential of four elements A, B, C and D are +0.8 V, +0.2 V, -1.8 V and - 0.5 V respectively, the element with highest reducing power is​

Answer 1

Answer:

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The metal with least standard reduction electrode potential has the highest reducing power and vice-versa. Therefore, the order of the reducing power of these metals is B>A>C.,B has highest reducing power

Answer 2

Given info : the standard reduction electrode potential of four elements A, B , C and D are +0.8V , +0.2V , -1.8V and -0.5V respectively.

To find : the element with highest reducing power is ...

solution :  reducing power means, the potential of a substance to reduce the another substance. reducing power is inversely proportional to the standard reduction electrode potential. means, the reducer will be stronger, when it has more negative reduction potential while the reducer will be weaker if it has more positive reduction potential.

       here, if we arrange higher potential to lower potential, we'll get,

A > B > D > C

∴ arrange based on reducing power will be C > D > B > A

therefore the element with the highest reducing power is C.