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The gas that is liberated when iron is heated with concentrated tetraoxosulphate (VI)acid is

Chemistry
WAEC 1990

The gas that is liberated when iron is heated with concentrated tetraoxosulphate (VI)acid is

  • A. H2S
  • B. \(SO_{2}\)
  • C. HCI
  • D. SO3
  • E. O2
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Correct Answer: Option B
Explanation

2Fe (s) + 6H2SO4 (l) → Fe2(SO4)3 (aq) + 3SO2 (g) + 6H2O (l)

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