JEE Main 2020 — Electrochemistry Question with Solution
From: JEE Main 2020 (Online) 4th September Morning Slot
Question
= +0.34 V
= -0.76 V
Identify the incorrect statement from the option below for the above cell :
This question includes a diagram. The text above accompanies the figure.
Choose an option
Show full solutionCorrect option: D
Correct answer
DIf Eext > 1.1 V, Zn dissolves at Zn electrode
and Cu deposits at Cu electrode
Step-by-step explanation
= -
= 0.34 – (–0.76)
= 1.10 V
If Eext < 1.1 V then Zn dissolves at anode and copper deposits at Cathode.
If Eext > 1.1V then Zn deposited at zinc electrodes and Cu deposits at Cu electrode.
= 0.34 – (–0.76)
= 1.10 V
If Eext < 1.1 V then Zn dissolves at anode and copper deposits at Cathode.
If Eext > 1.1V then Zn deposited at zinc electrodes and Cu deposits at Cu electrode.
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