Universal indicator turns red in acidic solutions, green in neutral solutions and blue in alkaline solutions. If universal indicator is added to a solution of sodium sulphate being electrolysed, a red colour appears at the anode. Which of the following reaction is taking place at anode?
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c) 2H2O ---->O2+4H++ 4e-
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c is right answer
it's IIThome TYB
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