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Question

Chromatography can be used to :
  1. form mixtures
  2. change mixture compositions
  3. separate mixtures into pure substances
  4. all of these

A
form mixtures
B
all of these
C
change mixture compositions
D
separate mixtures into pure substances
Solution
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Chromatography, 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. The mobile phase may be either a liquid or a gas, while the stationary phase is either a solid or a liquid.It doesn't change composition of mixture nor form any mixture, it just separate mixture

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