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How do lyophobic sols behave once precipitated?

Options

  1. AThey become stable
  2. BThey coagulate or precipitate
  3. CThey become irreversible
  4. DThey reconstitute

Correct answer

C. They become irreversible

Step-by-step solution

Once precipitated, lyophobic sols do not give back the colloidal sol by simple addition of the dispersion medium, making them irreversible.

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