Peroxodisulphate salts (e.g. Na_2S_2O_8) are strong oxidizing agents used as bleaching agentsfor salts, fats, oils, etc. Given O_{2(g)} + 4H^{\+}_{(g) + 4e^{-} → 2H_2O_{(l) ; E° = 1.23 V S_2O_{8(aq)}^{2-} + 2e^{-} → 2SO_4_{4(aq)}^{2-} ; E° = 2.01 V Which of the following statements is (are) correct?

Question

Peroxodisulphate salts (e.g. Na_2S_2O_8)  are strong oxidizing agents used as bleaching agentsfor salts, fats, oils, etc. Given O_{2(g)} + 4H^{\+}_{(g) + 4e^{-} → 2H_2O_{(l)  ; E° = 1.23 V S_2O_{8(aq)}^{2-} + 2e^{-} → 2SO_4_{4(aq)}^{2-} ; E° = 2.01 V Which of the following statements is (are) correct?

Examsnet · Accepted Answer

Correct Answer is : Oxygen gas can oxidize sulphate ion to peroxodisulphate ion (S2O82−) in acidic solution

JEE Advanced Model Paper 7 with solutions for online practice