Question 26
Sulphur and its CompoundsWhen dilute hydrochloric acid is added to iron(II) sulphide the gas evolved will
- A.turn moist red litmus paper blue
- B.turn lime water milky
- C.blacken lead acetate paper
- D.rekindle a glowing splint
- E.burn with a squeaky pop.
Show the answer and explanation
Answer: C (blacken lead acetate paper)
Explanation
The gas is hydrogen sulphide, which forms black lead(II) sulphide with lead acetate paper.