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Surface Chemistry — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistrySurface Chemistry3 Marks
Question
Write one difference in each of the following:
  1. Lyophobic sol and Lyophilic sol.
  2. Solution and Colloid.
  3. Homogeneous catalysis and Heterogeneous catalysis.
✓

Answer

  1. Lyophobic are liquid (dispersion medium)-hating and lyophilic are liquid (dispersion medium)-loving colloids.
  2. Solution is a Homogenous mixture while colloid is heterogeneous mixture/does not show Tyndall effect-shows Tyndall effect.
  3. Homogeneous catalysis: reactants and catalyst are in same phase-Heterogeneous catalysis: reactants and catalyst are not in same phase.

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