9th Class Science Matter in Our Surroundings Question Bank 9th CBSE Science Matter in Our Surroundings

  • question_answer
      Design an experiment to show that ammonium chloride undergoes sublimation.

    Answer:

              (i) Take   crystals   of ammonium chloride in a china dish.                      (ii) Put the china dish on a tripod stand               chloride with wire gauze.                    (iii) Put an inverted funnel on the china   Ammonium dish and insert a cotton plug in the stem of the funnel.           (iv] Heat the china dish on a low flame.      (v] In the inside of the funnel white deposits of ammonium chloride is seen which directly converts into gaseous state and then solidifies


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