NVAEasyJEE Main 2023 · 6 April, Shift 2Electrochemical Cells

Chemistry Question from JEE Main 2023 · 6 April, Shift 2

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

NO3+4H++3eNO(g)+2H2OE0=0.97V\text{NO}_3^- + 4\text{H}^+ + 3e^- \rightarrow \text{NO(g)} + 2\text{H}_2\text{O} \quad E^0 = 0.97 \, \text{V}

V2++2eVE0=1.19V\text{V}^{2+} + 2e^- \rightarrow \text{V} \quad E^0 = -1.19 \, \text{V}

Fe3++3eFeE0=0.04V\text{Fe}^{3+} + 3e^- \rightarrow \text{Fe} \quad E^0 = -0.04 \, \text{V}

Ag++eAg(s)E0=0.80V\text{Ag}^+ + e^- \rightarrow \text{Ag(s)} \quad E^0 = 0.80 \, \text{V}

Au3++3eAu(s)E0=1.40V\text{Au}^{3+} + 3e^- \rightarrow \text{Au(s)} \quad 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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