JEE Mains Chemistry Past PapershardNUMERICAL

Consider the following equations : 2Fe2+ + H2O2 xA + yB (in basic medium) 2MnO4 – + 6H+ + 5H2O2 x’C JEE Mains Chemistry Past Papers Chemistry Question

Question

Consider the following equations : 2Fe2+ + H2O2 xA + yB (in basic medium) 2MnO4 – + 6H+ + 5H2O2 x’C + y’D + z’E (in acidic medium) The sum of the stoichiometric coefficients x, y, x’, y’ and z’ for products A, B, C, D and E, respectively, is ………..

Answer: .

💡 Solution & Explanation

(i) 2Fe2+ + H2O2  2Fe3+ + 2OH- (ii) 2MnO4– + 5H2O2 + 6H+  2Mn2+ + 5O2 + 8H2O So sum of (x + y + x1 + y1 + z1) = 2 + 2 + 2 + 5 + 8 = 19

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