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Which of the following statements defines 'chromatography'? 1. It is the process of separation of components of a mixture. 2. It is used to separate colours in a dye. 3. It is used to separate a mixture of oil and water. Select the correct answer using the codes given below.

Which of the following statements defines 'chromatography'? 1. It is the process of separation of components of a mixture. 2. It is used to separate colours in a dye. 3. It is used to separate a mixture of oil and water. Select the correct answer using the codes given below. Correct Answer 1 and 2

The correct answer is 1 and 2.

Key Points

  • Chromatography
    • Chromatography, a technique for separating the components, or solutes, of a mixture on the basis of the relative amounts of each solute distributed between a moving fluid stream, called the mobile phase, and a contiguous stationary phase.
    • It is also used to separate colours in a dye
    • The mobile phase may be either a liquid or a gas, while the stationary phase is either a solid or a liquid.

Additional Information

  • Chromatography has numerous applications in biological and chemical fields.
  • It is widely used in biochemical research for the separation and identification of chemical compounds of biological origin.
  • In the petroleum industry, the technique is employed to analyze complex mixtures of hydrocarbons.
  • Chromatographic methods are classified according to the following criteria:
    • The geometry of the system
    • mode of operation
    • retention mechanism
    • phases involved.

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