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JAMB Biology 2015 Objective — Question 15

Question 15 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2015 Objective paper, with the correct answer and a full explanation.

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

  • A. Cl₂
  • B. NH₃
  • C. SO₂
  • D. H₂SCorrect

Explanation

H₂S reacts with lead(II) ethanoate to produce lead(II) sulphide, an insoluble black precipitate.

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