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Unilorin Post-UTME Chemistry 2022 (Model questions) Question 15

Question 15

Sulphur and its Compounds

A gas that forms a black precipitate with lead(II) ethanoate is

  1. A.Cl2
  2. B.NH3
  3. C.H2
  4. D.H2S
Show the answer and explanation

Answer: D (H2S)

Explanation

H2S reacts with lead(II) ethanoate to form black lead(II) sulphide; this is the test for hydrogen sulphide.