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ICSE Class 9 Chemistry Question 20 of 24

Model Question Paper — 2 — Question 15

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15
Question

Question 6(c)

Name any two impurities present in the hydrogen gas prepared in the laboratory. Also name the chemical used to remove any one impurity that you have stated.

Answer

Two impurities present in the hydrogen gas prepared in the laboratory are :

  1. Hydrogen sulphide (H2S)
  2. Sulphur dioxide (SO2)

Lead nitrate solution is used to remove hydrogen sulphide.