Question

Design an experiment to show that ammonium chloride undergoes sublimation.

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Answer

  • Take crystals of ammonium chloride in a china dish.
  • Put the China dish on a tripod stand with wire gauze.
  • Put an inverted funnel on the china dish and insert a cotton plug in the stem of the funnel.
  • Heat the china dish on a low flame.
  • In the inside of the funnel white deposits of ammonium chloride is seen which directly converts into gaseous state and then solidifies.
  • ammonium chloride undergoes sublimation

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