NEETChemistry-Electrochemistry
NEET Chemistry Standard Electrode Potentials MCQ Question
Type: MCQ-numerical-Medium-Class 12
E° values for half cell reactions are given below : Cu²⁺ + e⁻ → Cu⁺ ; E° = 0.15 V Cu²⁺ + 2e⁻ → Cu ; E° = 0.34 V What will be the E° of the half-cell : Cu⁺ + e⁻ → Cu ?
A
+0.49 V
B
+0.19 V
C
+0.53 V
D
+0.30 V
Correct Answer
Option B
Detailed Explanation
Using the given E° values, the E° for Cu⁺ + e⁻ → Cu can be calculated using the equation E° = (E° for Cu²⁺ + 2e⁻ → Cu) - (E° for Cu²⁺ + e⁻ → Cu⁺).
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