For micelle formation,which of the following statements are correct?
$A$. Micelle formation is an exothermic process.
$B$. Micelle formation is an endothermic process.
$C$. The entropy change is positive.
$D$. The entropy change is negative.

  • A
    $A$ and $D$ only
  • B
    $A$ and $C$ only
  • C
    $B$ and $C$ only
  • D
    $B$ and $D$ only

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Which of the following contributes to the extra stability of lyophilic colloids?

Select the incorrect statement:

Which of the following ions will have the minimum coagulating value for the sol obtained by adding $FeCl_3$ solution to a slight excess of $NaOH$?

What is the cause of Brownian motion?

Match List $I$ with List $II$:
List $I$List $II$
$(A)$. Brownian Motion$(I)$. Removal of impurities from the colloidal sols using a semipermeable membrane.
$(B)$. Tyndall Effect$(II)$. Movement of colloidal particles under the influence of an electric field.
$(C)$. Electrophoresis$(III)$. Random movement of colloidal particles due to kinetic energy.
$(D)$. Dialysis$(IV)$. Scattering of light by colloidal particles

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