Fundamentholfundamenthol
JEE Main2019Chemistry
Q.

Consider the following reduction processes :

Zn2+ + 2e– Zn(s); = – 0.76 V

Ca2+ + 2e– Ca(s); = – 2.87 V

Mg2+ + 2e– Mg(s); = – 2.36 V

Ni2+ + 2e–  Ni(s); = – 0.25 V

The reducing power of the metals increases in the order :

  1. A

    Ca < Zn < Mg < Ni

  2. B

    Ni < Zn < Mg < Ca 

  3. C

    Zn < Mg < Ni < Ca 

  4. D

    Ca < Mg < Zn < Ni 

Solution

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