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JEE Main Chemistry Class 11 Electrochemistry Part 2 Questions

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Question : 14 of 79

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The standard reduction potentials at 298K for the following half cells are given below :
Cr2O72−+14H++6e−⟶2Cr3++7H2O,E∘=1.33V
Fe3+(aq)+3e−⟶Fe‌E∘=−0.04V
Ni2+(aq)+2e−⟶Ni‌E∘=−0.25V
Ag+(aq)+e−⟶Ag‌E∘=0.80V
Au3+(aq)+3e−⟶Au‌E∘=1.40V
Consider the given electrochemical reactions, The number of metal(s) which will be oxidized be Cr2O72−, in aqueous solution is _______.

[9 Apr 2024 Shift 1]

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