How do you separate a mixture of barium tetraoxosulphate VI, sodium chloride and iron filings?

How do you separate a mixture of barium tetraoxosulphate VI, sodium ch

1.	How do you separate a mixture of barium tetraoxosulphate VI, sodium chloride and iron filings?
Answer» The principle behind this technique is that some solid SUBSTANCES are soluble in certain kind of solvent, while others are not. Hence, it is used generally to separate soluble substances from INSOLUBLE ones. For example, a mixture of sodium chloride crystals and SAND – the sodium chloride is soluble in water while sand is not. Therefore, water is added to the mixture to dissolve sodium chloride while leaving the sand to settle.Explanation:Water soluble salts INCLUDES: All common trioxonitrates(V) of metals. All common salts of sodium, potassium and ammonium. All common tetraoxosulphates(VI), EXCEPT: barium tetraoxosulphate(VI)