In the differential extraction method using a separating funnel,two layers are formed. What is the difference in the mixture before shaking the solution and at the end of the process?

From the figure of column chromatography given below,identify the incorrect statements.
$A.$ Compound '$c$' is more polar than '$a$' and '$b$'
$B.$ Compound '$a$' is least polar
$C.$ Compound '$b$' comes out of the column before '$c$' and after '$a$'
$D.$ Compound '$a$' spends more time in the column
Choose the correct answer from the options given below :-

Which of the following compounds can be separated by the steam distillation method?

How will you separate a mixture of two organic compounds which have different solubilities in the same solvent?

Which among the following purification methods is based on the principle of "Solubility" in two different solvents?

Which purification technique is used for high boiling organic liquid compounds that decompose near their boiling point?