Which of the following statements is incorrect about colloidal solutions?

  • A
    Lyophobic sols are more stable than lyophilic sols.
  • B
    Lyophilic colloids have a unique property of protecting lyophobic colloids.
  • C
    Lyophilic colloids are more soluble than lyophobic colloids.
  • D
    None of these

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What are lyophilic and lyophobic sols? Give one example of each type. Why are hydrophobic sols easily coagulated?

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Which among the following is a multi-molecular colloid?

Who introduced the concept of $Gold \ Number$?

Sodium lauryl sulphate is an example of:

Identify the option having the correct set of True $(T)$ or False $(F)$ statements with respect to colloidal solutions:
$(I)$ Lyophobic colloids are heavily solvated by the dispersion medium.
$(II)$ Multimolecular colloids are usually lyophilic.
$(III)$ Surface tension of a starch aqua sol will be lesser than that of water.
$(IV)$ Blood gets coagulated by the addition of $NaCl$.

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