Question:medium

Match items of column I and II

Column I (Mixture of compounds)Column II (Separation Technique)
AH2O/CH2Cl2​iCrystallization
B
iiDifferential solvent extraction
CKerosene/NaphthaleneiiiColumn chromatography
DC6​H12O6​/NaClivFractional Distillation

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Separation techniques like differential solvent extraction, column chromatography, and fractional distillation depend on the physical properties such as solubility, boiling points, and ionic nature of the compounds.
Updated On: Mar 31, 2026
  • A-(iii), B-(iv), C-(ii), D-(i)
  • A-(i), B-(iii), C-(ii), D-(iv)
  • A-(ii), B-(iv), C-(i), D-(iii)
  • A-(ii), B-(iii), C-(iv), D-(i)
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The Correct Option is D

Solution and Explanation

To match the items from Column I (mixtures of compounds) with appropriate separation techniques from Column II, we need to understand the nature of each mixture and the principle behind each separation technique.

  1. Mixture A: H2O/CH2Cl2
    • This is a mixture of water and dichloromethane, which are immiscible liquids.
    • They can be separated using differential solvent extraction because this technique exploits the difference in solubility of compounds in two immiscible solvents.
  2. Mixture B: (Image Mixture)
    • This image represents a typical scenario where compounds are separated based on different affinities towards stationary and mobile phases.
    • This technique is column chromatography which is used to separate compounds based on polarity or molecular size.
  3. Mixture C: Kerosene/Naphthalene
    • This mixture includes a liquid (kerosene) and a solid (naphthalene) where fractional distillation can separate components based on boiling points. However, here it is more theoretical because naphthalene sublimates, and kerosene doesn't distill easily.
    • So, a more fitting technique in practical cases could be considered distillation or crystallization depending on the expected extraction's goal.
    • But here it is matched with fractional distillation.
  4. Mixture D: C6H12O6/NaCl
    • This is a mixture of glucose and sodium chloride (table salt).
    • Crystallization is an appropriate method for separating a crystalline solid like sodium chloride from a solution.

Based on the above analysis, the correct matches are:

A-(ii), B-(iii), C-(iv), D-(i)
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