Q. 22

Calculate the oxi

Answer :

(Oxidation no. of every atom is underlined by red.)

(a) Na2S2O3


(b) Na2S4O6


(ii) The reactivity of isotopes of hydrogen is not same towards oxygen because of their different bond dissociation enthalpy. Deuterium and tritium have higher bond dissociation enthalpy than hydrogen thus their reactivity is also low.

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