Dr Margolin’s past was a blend of recognition and sadness. As a child, he was lauded as a prodigy. He always felt he was a failure. Everyone in their home town assumed he would grow up to be a genius in his childhood days, but he faced difficulties. The loss of his true love, Raizel, affected his mental health, and he lost complete faith in humanity. His family had been tortured, burned and gassed. He also suffered from fear of death. All these incidents shaped Dr Margolin’s existing state of mind. However, on the professional front, he was successful and had a promising career. He had an office in West End Avenue and wealthy patients. He was highly regarded and respected by his close associates and everyone else.

Standard electrode potential for \( \text{Sn}^{4+}/\text{Sn}^{2+} \) couple is +0.15 V and that for the \( \text{Cr}^{3+}/\text{Cr} \) couple is -0.74 V. The two couples in their standard states are connected to make a cell. The cell potential will be:
To calculate the cell potential (\( E^\circ_{\text{cell}} \)), we use the standard electrode potentials of the given redox couples.
Given data:
\( E^\circ_{\text{Sn}^{4+}/\text{Sn}^{2+}} = +0.15V \)
\( E^\circ_{\text{Cr}^{3+}/\text{Cr}} = -0.74V \)
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