Which among the following is an example of an emulsion?

The apparatus used for the precipitation of carbon particles from smoke is known as.............

Ferric chloride is applied to stop bleeding because:

Which of the following methods can be used to destroy a sol?

Which of the following will show Tyndall effect?

$A$ $42.12 \% (w/v)$ solution of $NaCl$ causes precipitation of a certain sol in $10 \, hours$. The coagulating value of $NaCl$ for the sol is $.....$
[Given : Molar mass : $Na = 23.0 \, g \, mol^{-1} ; Cl = 35.5 \, g \, mol^{-1}]$