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Surface Chemistry — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistrySurface Chemistry1 Mark
MCQ
A colloidal sol can be prepared by:
  • A
    Breaking the bulky substance into fine particles of colloidal dimensions.
  • B
    Increasing the size of molecular particles to form larger aggregates.
  • C
    Mixing a substance directly with a dispersion medium.
  • ✓
    All of the above.
✓

Answer

Correct option: D.
All of the above.
A colloidal sol can be prepared by:
$(1)$ Mixing directly a substance with a dispersion medium.
$(2)$ By formation of aggregates by increasing size of molecular particles.
$(3)$ Breaking the bulky substance into fine particles of colloidal dimensions

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