Which of the following is the structure of a separating funnel?

The mixture of compounds $A$ and $B$ is passed through a column of $Al_2O_3$ by using alcohol as eluant. Compound $A$ is eluted in preference to compound $B$. Which of the compounds $A$ or $B$ is more readily adsorbed on the column?

Which substance is used in the purification of bone charcoal?

What is column chromatography?

Give the answer of the following questions in short:
$(i)$ When is simple distillation used?
$(ii)$ When is fractional distillation used?
$(iii)$ Which liquid is obtained first in fractional distillation?
$(iv)$ Which liquid is cooled first in fractional distillation?
$(v)$ What happens in the fractional column?

What is mother liquor?