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Which of the following methods is used to separate Ammonium chloride from a mixture containing Ammonium chloride and Sodium chloride?

Which of the following methods is used to separate Ammonium chloride from a mixture containing Ammonium chloride and Sodium chloride? Correct Answer Sublimation

Option 2 is correct.

  • Sublimation is the transition of a substance directly from the solid to the gaseous state, without passing through the liquid state.
  • Ammonium chloride changes directly from solid to gaseous state on heating. So, to separate such mixtures that contain a sublimable volatile component from a non-sublimable impurity (salt in this case), the sublimation process is used.
  • Some examples of solids which are sublime are Ammonium chloride, Camphor, Naphthalene and Anthracene.

Chromatography

  • The mixture is dissolved in a fluid called the mobile phase, which carries it through a structure holding another material called the stationary phase.
  • The various constituents of the mixture travel at different speeds, causing them to separate.

Centrifugation

  • Centrifugation is the process where a mixture is separated through spinning.
  • It is used to separate skim milk from whole milk, water from clothes, and blood cells from blood plasma.

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