Year: 2022

Topic: Electrochemistry

Time :

1.

Given below are half cell reactions:

Will the permanganate ion, MnO₄^- liberate O₂ from water in the presence of an acid?

(1). \(\text{Yes, because}\, E^\circ _{cell}\,=\,+0.287\, \text{V}\)
(2). \(\text{No, because}\, E^\circ _{cell}\,=\,-0.287\, \text{V}\)
(3). \(\text{Yes, because} \,E^\circ _{cell}\,=\,+2.733\, \text{V}\)
(4). \(\text{Np, because}\, E^\circ _{cell}\,=\,-2.733\, \text{V}\)

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