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

$(a)$ Give uses of chromatography.
$(b)$ Give the meaning of the word chromatography.
$(c)$ Write the first use of chromatography.

What is a theoretical plate?

In chromatography technique,the purification of a compound is independent of:

State whether the following statements regarding fractional distillation are True or False:
$(i)$ The freezing of vapour of a liquid with a high boiling point takes place first.
$(ii)$ In the column,the more volatile liquid is present in a higher concentration in the vapour phase at higher levels.
$(iii)$ The condensed liquid flows down and provides heat to the vaporizing liquid.
$(iv)$ The liquid with the highest boiling point reaches the top of the column.

Glycerol is purified by