Sodium lauryl sulphate is an example of:

Identify the sequential reactions involved in the Sol-Gel process.

Identify the correct statements from the following:
$I$) Sulphur sol is an example of a multimolecular colloid.
$II$) Starch sol is an example of an associated colloid.
$III$) Artificial rubber is an example of a macromolecular colloid.

$A$ precipitate is changed to a colloidal solution by the following process:

The surface tension of a lyophilic sol is ............

Which of the following can act as protective colloids?