Question

24. In a mixture of iron filing and sulphur powder and a compound iron sulphide?
(a) Iron and iron sulphide are soluble in carbon disulphide.
(b) Iron sulphide is soluble in carbon disulphide.
(c) Sulphur is soluble in carbon disulphide.
(d) Sulphur and iron sulphide are soluble in carbon disulphide?​

Answer 1

Answer:

Carbon disulphide is a colourless liquid.  Iron sulphide is ionic compound while carbon disulphide is a non-polar molecule.

Iron sulphide is not soluble in carbon disulphide and hence the carbon disulphide remains colourless.

The compound formed by heating a mixture of iron filing & sulphur is iron sulphide. It is an exothermic reaction.

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