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Which of the following reactions is sulphur (IV) oxidizing agent?

Chemistry
WAEC 2005

Which of the following reactions is sulphur (IV) oxidizing agent?

  • A. 2HNO 3(aq) + SO2(g) → H2SO4(aq) + 2NO2(g)
  • B. 2KMnO 4(aq) + 5SO2(g) + 2H2O → K2SO4(aq) +MnSO4(aq) 2H2SO4(aq)
  • C. FeCI3(aq) + SO2(g) + 2H2O(l) → FeCI 2(g)+ 2HCI(g) + H2SO4(aq)
  • D. 2H2S(g) + SO2(g) →2H2O(l) + 3S(s)
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Correct Answer: Option B
Explanation

It also reduces potassium permanganate and dichromate to Mn2+ and Cr3+ respectively.

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