Chemistry-(general)
NEET Chemistry (general) MCQ Question
Type: MCQ-conceptual-Hard-Class 12
Consider the standard electrode potentials E° values for the M²⁺/M couples of transition metals. Which of the following reasons primarily explains the irregularity in these values?
A
Variation in ionisation enthalpies and sublimation enthalpies
B
Constant sublimation enthalpies across all transition metals
C
Consistent electron configurations for all transition metals
D
Uniform atomic radii for transition metals
Correct Answer
Option A
Detailed Explanation
The irregularity in E° values for M²⁺/M couples of transition metals is explained by the irregular variation of ionisation enthalpies and sublimation enthalpies, particularly for Mn and V.
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