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Electrochemical Series

Standard elec...

Question

Standard electrode potentials of three metals $X, Y$ and $Z$ are $- 1.2 V, + 0.5 V$ and $- 3.0 V$ respectively. The reducing power of these metals will be:

A

Y > Z > X

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B

Y > X > Z

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C

Z > X > Y

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D

X > Y > Z

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Solution

The correct option is C $Z > X > Y$
More negative the value of stanadard reduction potential, stronger will be the reducing agent. So, $Z (- 3.0 V) > X (- 1.2 V) > Y (+ 0.5 V)$ .

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