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Solution of problem 633 of the collection of general ch
633. Complete the reaction equations. To pay attention to the oxidation-reduction duality of elements in an intermediate degree of oxidation:
A) KI + KNO2 + CH3COOH → NO +
KMnO4 + KNO2 + H2SO4 → KNO3 +
B) H2SO3 + Cl2 + H2O → H2SO4 +
H2SO3 + H2S → S +
C) Na2S2O3 + I2 → Na2S4O6 +
Cl2 + I2 + H2O → HIO3 +
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