First slide

Standard EMF of a cell

Question

Statement I : Life span of Daniel cell can be increased by increasing the size of zinc electrode
Statement II : Emf of a galvanic cell varies with concentration of electrolyte

Easy

A

Statement I and II are correct
B

Statement I is correct and Statement II is incorrect
C

Statement - I is incorrect and Statement - II is correct
D

Both statement - I and II are incorrect

Solution

When size of Zinc electrode increases life span of Daniel cell increases because for more time electrons are transferred from anode to cathode.
According to Nernst equation electrode potential depends on concentration of electrolyte.

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