Which of the Following Is the First, or Initiator, Reaction

question 42

Multiple Choice

Which of the following is the first, or initiator, reaction in acid mine drainage and leaching?

• A) oxidation of reduced sulfides to sulfate and the release of reduced iron (Fe²⁺)
• B) rapid spontaneous reduction of oxidized iron (Fe³⁺)
• C) rapid oxidation of sulfides to sulfate by oxidized iron (Fe³⁺)
• D) microbial sulfate reduction

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