Give an example of a solid sol in which the dispersed phase is solid.

Which of the following statements is true for a lyophilic sol?

The stability of lyophilic colloids is due to

Which of the following is responsible for the stability of hydrophilic sols?

In which of the following is the Tyndall effect not observed?

The coagulation values in millimoles per litre of the electrolytes used for the coagulation of $As_2S_3$ are given below:
$I$. $(NaCl) = 52,$
$II$. $(BaCl_2) = 0.69,$
$III$. $(MgSO_4) = 0.22$
The correct order of their coagulating power is: