CBSE Class 12 Chemistry 2020 Delhi Set 3 Solved Paper - Question ...

CBSE Class 12 Chemistry 2020 Delhi Set 3 Solved Paper

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Question : 7 of 16

Marks: +1, -0

Zinc is coated over iron to prevent rusting of iron because

${\E}°_{ {\Zn}^{2+} \/ {\Zn}} = {\E}°_{ {\Fe}^{2+} \/ {\Fe}}$
${\E}°_{ {\Zn}^{2+} \/ {\Zn}} < {\E}^{ {\o}} {\Fe}^{2+} \/ {\Fe}$
${\E}°_{ {\Zn}^{2+} \/ {\Zn}} > {\E°}_{ {\Fe}^{2+} \/ {\Fe}}$
None of these

Solution:

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