Question

Explain the following -
1)chromatography
2)fractional distillation
3)distillation
with examples.

Answer 1

◆ Chromatography is a separation technique used to separate the different components in a liquid mixture. 
To separate colors in a dye.
To separate pigments from natural colors.
To separate drugs from blood.

◆ Fractional distillation is used for the separation of a mixture of two or more miscible liquids for which the difference in boiling points is less than 25K.
Separation of different fractions from petroleum products.
Separation of a mixture of methanol and ethanol.

◆ Simple distillation is a method used for the separation of components of a mixture containing two miscible liquids that boil without decomposition and have sufficient difference in their boiling points.
Separation of acetone and water.
Distillation of alcohol.

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