Question 33
Sulphur and its CompoundsA gas that turns a filter paper previously soaked in lead ethanoate solution black is
- A.hydrogen chloride
- B.hydrogen sulphide
- C.sulphur (IV) oxide
- D.sulphur (VI) oxide
Show the answer and explanation
Answer: B (hydrogen sulphide)
Explanation
Hydrogen sulphide reacts with lead ethanoate to form black lead(II) sulphide; this is the standard test for H2S.