When pH increases, which Ecell has an decrease?
A. Fe| Fe²+ || Br- | Br₂ | Pt
B. Pt, I₂ | I- || Fe³+ ‚Fe²+ | Pt
C. Fe| Fe²+ || Cr₂O7²¯, Cr³+, H+ | Pt
D. Pt | H₂(p) | H+ || Fe3+,Fe2+ Pt
[ Please don't give wrong answer ]
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Answer (C)
In this case [H+] appears in denominator of Nernst equation of cell emf
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