First slide

Activity Series (OR) Electro chemicals series

Question

The S.R.Ps of Cu²⁺/Cu, Hg²⁺/ Hg and Zn²⁺/Zn are respectively 0.34V, 0.85 V and – 0.76 V. The wrong statement is

Easy

A

Cu reduces Hg²⁺
B

Zn reduces Cu²⁺
C

Hg reduces Zn²⁺
D

Zn reduces both Cu²⁺ and Hg²⁺

Solution

Lower SRP reduces all Higher SRP values.
SRP of Hg is higher than that of Zn. Hg cannot reduce Zn⁺² but Zn can reduce Hg⁺²

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