Chemistry-Transition Elements
NEET Chemistry Transition Elements MCQ Question
Type: MCQ-numerical-Hard-Class 12
Calculate the standard electrode potential for the Cu²⁺/Cu half-cell using the given thermochemical data and explain why Cu⁺ is not stable in aqueous solutions.
A
0.34 V
B
-0.76 V
C
-1.63 V
D
1.18 V
Correct Answer
Option A
Detailed Explanation
According to the NCERT context, the standard electrode potential for the reduction of Cu²⁺ to Cu is 0.34 V. This positive potential indicates that Cu²⁺ is more stable than Cu⁺ in aqueous solutions, rendering Cu⁺ unstable.
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