Chemistry 0620 · IGCSE · Oxides

Oxides — practice question

Which row shows two applications of sulfur dioxide?

  • Ableaching paper pulp; neutralising acidic industrial waste
  • Bbleaching paper pulp; preserving food and drink
  • Cextracting iron from hematite; neutralising acidic industrial waste
  • Dextracting iron from hematite; preserving food and drink

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