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In Which Reaction Does the Oxidation Number of Oxygen Increase

Question 67

Multiple Choice

In which reaction does the oxidation number of oxygen increase?


A) Ba(NO3) 2 (aq) + K2SO4 (aq) → BaSO4 (s) + 2KNO3 (aq)
B) HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (l)
C) MgO (s) + H2O (l) → Mg(OH) 2 (s)
D) 2SO2 (g) + O2 (g) → 2SO3 (g)
E) 2H2O (l) → 2H2 (g) + O2 (g)

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