Chemistry Answer the following questions:

Name the following:
i. A glass plate coated with a thin layer of silica gel.
ii. A spraying agent used for the visualization of amino acids.

State the principle of partition chromatography.

Name the physical state each of stationary phase and mobile phase in partition chromatography.

How is TLC plate or chromplate prepared?

Match the following:

	Process		Used in the purification/separation of
i.	Crystallization	a.	Acetone and benzene
ii.	Simple distillation	b.	Benzoic acid and water
iii.	Fractional distillation	c.	Impure copper sulphate
iv.	Solvent extraction	d.	Acetone and water

Give one industrial application of fractional distillation.

Give two examples of a mixture that can be separated by fractional distillation.

What is the advantage of fractional distillation over simple distillation?

Which type of impure liquids can be purified by the process of distillation?

Define: Fractional crystallization

Which solvent is used for the purification of copper sulphate and benzoic acid?

Name the common solvents used in the process of crystallization.

Name the steps involved in the process of crystallization.

Why is safety bottle used when filtration is carried out under suction?

For which of the following cases, is the process of filtration feasible? Why?
Case 1: A solid substance containing impurities which are soluble in the same solvent as the main substance.
Case 2: A solid substance containing impurities which are not soluble in the same solvent as the main substance.