NCERT Exercise 7.1 - Redox Reactions

Question: Assign oxidation numbers to the underlined atoms in NaH2PO4, NaHSO4, H4P2O7, K2MnO4, CaO2, NaBH4, H2S2O7 and KAl(SO4)2.12H2O.

Answer: P +5; S +6; P +5; Mn +6; O -1; H -1; average S +6; S +6.

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