NVAMediumJEE Main 2023 · 6 April, Shift 1Electrochemical Cells

Chemistry Question from JEE Main 2023 · 6 April, Shift 1

The standard reduction potentials at 298K298 \, \text{K} for the following half cells are given below:

NO3+4H++3eNO(g)+2H2O,  E0=0.97V\text{NO}_3^- + 4\text{H}^+ + 3e^- \rightarrow \text{NO(g)} + 2\text{H}_2\text{O}, \; E^0 = 0.97 \, \text{V} V2+(aq)+2eV,  E0=1.19V\text{V}^{2+}\text{(aq)} + 2e^- \rightarrow \text{V}, \; E^0 = -1.19 \, \text{V} Fe3+(aq)+3eFe,  E0=0.04V\text{Fe}^{3+}\text{(aq)} + 3e^- \rightarrow \text{Fe}, \; E^0 = -0.04 \, \text{V} Ag+(aq)+eAg(s),  E0=0.80V\text{Ag}^+\text{(aq)} + e^- \rightarrow \text{Ag(s)}, \; E^0 = 0.80 \, \text{V} Au3+(aq)+3eAu(s),  E0=1.40V\text{Au}^{3+}\text{(aq)} + 3e^- \rightarrow \text{Au(s)}, \; E^0 = 1.40 \, \text{V}

The number of metal(s) which will be oxidized by NO3\text{NO}_3^- in aqueous solution is:

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