KMnO4 is titrated with ferrous ammonium sulphate hexahydrate in presence of dilute H2SO4 Number of w — JEE Mains Chemistry Past Papers Chemistry Question
Question
KMnO4 is titrated with ferrous ammonium sulphate hexahydrate in presence of dilute H2SO4 Number of water molecules produced for 2 molecules of KMnO4 is____________
Answer: .
💡 Solution & Explanation
KMnO4 + FeSO4.(NH4)2 SO4. 6H2O MnO4– + 8H+ + 5e– Mn2+ + 4H2O Fe2+ Fe3+ + e– _____________________________________________ MnO4– + 5Fe2+ + 8H+ Mn2+ + 2Fe3+ + 4H2O 2 mole 10 mole 8 mole Total water molecule produced (i) From 10 molecule of used (FeSO4.(NH4)2 SO4. 6H2O) = 10 × 6 = 60 (ii) From redox reaction = 8 Total produced water molecule = 68.
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