Question 17
Sulphur and its CompoundsA filter paper soaked in lead ethanoate solution will turn black in the presence of
- A.hydrogen chloride gas
- B.sulphur(IV) oxide gas
- C.hydrogen sulphide gas
- D.sulphur(VI) oxide gas
Show the answer and explanation
Answer: C (hydrogen sulphide gas)
Explanation
H2S reacts with lead ethanoate to form black lead(II) sulphide, PbS; this is the test for hydrogen sulphide.