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Electrochemical Series

Red hot carbo...

Question

Red hot carbon will remove oxygen from the oxides XO and YO but not from ZO. Y will remove oxygen from XO. Use this evidence to deduce the order of activity of the three metals X, Y and Z in order of reactivity.

A

X, Y, Z

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B

Z, Y, X

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C

Y, X, Z

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D

Z, X, Y

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Solution

The correct option is B Z, Y, X
Carbon is a powerful reducing agent from X and Y but not from Z. Hence, Z is the most reactive metal.
Also, Y is more reactive than X.

Therefore, reactivity series : Z > Y > X.

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