Chemistry 5070 · O Level · Redox

Redox — practice question

Numerous reactions involve oxidation and reduction. Which statement is correct?

  • AAcidified manganate(VII) ions change colour from colourless to purple when reduced.
  • BAll reactions that involve oxidation also involve reduction.
  • CDuring a reaction, oxidising agents lose electrons.
  • DReduction is the loss of hydrogen from a compound.

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