When H2S gas is passed into a solution of iron (III) chloride, the colour changes…

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Chemistry JAMB 1988

When H2S gas is passed into a solution of iron (III) chloride, the colour changes from yellow to green. This is because?

  • H(s)S is reduced to S
  • Fe3+ ions are oxidized by H(s)S
  • Fe3+ ions are oxidized Fe3+ ions
  • Fe3+ ions are reduced to Fe2+ ions checkmark

The correct answer is: D

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