1.

Reaction : 2Fe^(3+)+Zn to Zn^(2+)+2Fe^(2+), is carried out in electrochemical cell, then on increasing concentration of Fe^(2+) what will be observed ?

Answer»

CELL POTENTIAL increases
Cell potential decreases
Increase in current.
pH of solution decreases

Solution :`E_(cell)=E_(cell)^(o)-(0.0592)/(n)"log"(["The concentration of product"])/(["The concentration of reactant"])`
From above equation, on increasing `Fe^(2+)` concentration, `E_(cell)` VALUE decreases by subtracting from `E_(cell)^(@)` value.


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