MCQ
Expression representing the cell potential $(E\,\,cell)$
- A$E_{cathode} + E_{anode}$
- B$E_{anode} -E_{cathode}$
- ✓$E_{cathode} -E_{anode}$
- D$E_{left} -E_{right}$
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Assertion $A :$ The amphoteric nature of water is explained by using Lewis acid/base concept.
Reason $R$ : Water acts as an acid with $NH _{3}$ and as a base with $H _{2} S$.
In the light of the above statements choose the correct answer from the options given below :