Question

A mixture of common salt, sulphur, sand and iron filings is shaken with carbon disulphide and filtered through a filter paper. The filtrate is evaporated to dryness in a china dish.
9. What will be left in the dish after evaporation?
a) Sand
b) Sulphur
c) Iron filings
d) Common salt​

Answer 1

Explanation:

when the mixture is shaken with carbon disulphide only sulphur dissolves to form a yellow coloured compound. Common salt will not dissolve because it is a non-polar solvent. When the mixtured is filtered through the filtered paper common salt,sand and iron fillings remains in the filtered paper.