Question
Classify the following substances into oxidising and reducing agents:
  1. Carbon.
  2. Ozone.
  3. Nascent hydrogen.
  4. Nitric acid.
  5. Chlorine.

Answer

  1. Carbon has a high affinity towards oxygen so it is generally used as reducing agent. However, in case of highly reactive metals, it cannot be used as a reducing agent.
  2. Ozone being a source of oxygen generally behaves as an oxidising agent.
  3. As, we know addition of hydrogen is called reduction. So, nascent hydrogen behaves as a reducing agent.
  4. Nitric acid is a good oxidant i.e. oxidising agent as it readily provides oxygen.
  5. Chlorine can behave as oxidant as well as reductant depending upon the nature of other reactant.

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