Harsha wanted to separate a mixture containing sulphur, coal and sugar by using multi methods for separation. Then which statement is considered to be correct.

i) One of the methods used is based on solubility of substances in the given solvent

ii) Coal is soluble is carbon disulphide

iii) He can use both water and carbon disulphide for separation process.

iv) Coal is separated as a filtrate

To separate sugar first Harsha should pour the mixture in a beaker containing water where sugar will be dissolved. After that by the process of filtration using a filter paper, Harsha can separate coal and Sulphur as solids on the top of filter paper and by crystallization method of the solution, sugar and water can be separated.

Followed by this, add CS₂ to the mixture of coal and Sulphur and filter the solution where cola will be separated from Sulphur.