NCERT Exercise 7.19 - Redox Reactions

Question: Balance the stated disproportionation reactions involving phosphorus, hydrazine and dichlorine heptoxide.

Answer: (a) P4 + 3OH- + 3H2O -> PH3 + 3H2PO2-. (b) N2H4 + 2ClO3- -> 2NO + 2Cl- + 2H2O. (c) Cl2O7 + H2O2 + 2OH- -> 2ClO4- + O2 + 2H2O.

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