NCERT Exercise 7.2 - Redox Reactions

Question: Find oxidation numbers in KI, H3PO4, Fe3O4, CH3CH2OH and CH3COOH.

Answer: I -1; P +5; Fe in Fe3O4 is mixed Fe(II)/Fe(III), average +8/3; ethanol carbons -3 and -1; ethanoic-acid carbons -3 and +3.

Full step-by-step NCERT solution with diagrams on Something by Zero.

All Chapter 7 solutions