Question

2. Iron powder and sulphur powder were mixed together and divided into two parts A and B. When
was heated strongly over a burner, then a substance C was formed. The part B was, however, not heated at
all. When dilute hydrochloric acid was added to substance C, then gas D was evolved and when dilute
hydrochloric acid was added to part B then gas E was evolved.​

Answer 1

Answer:

C = ferric sulphide

D = Hydrogen

E = hydrogen