Question

Discribe a simple experiment who prove that the heated mass of iron filing and sulphur powder is no longer a mixture but a compound.​

Answer 1

Preparation of mixture using iron filings and sulphur powder:

Take about 14g of fine iron filings and 8g of sulphur powder in a big petridish or a beaker. Mix them well to prepare a mixture of iron filings and sulphur powder. Label the mixture A.

Preparation of compound using iron filings and sulphur powder:

Take about 14g of fine iron fillings and 8g sulphur powder in a china dish. Mix them well and heat the contents of the china dish, first gently, then strongly. Stir it constantly till a black mass, i.e., compound of sulphur and iron is formed. When a black mass is formed, cool it and powder the black mass. Label the compound powder as B.