Which mixture of solutions will lead to the formation of a negatively charged colloidal sol?
Adding KI solution to AgNO₃ solution, with AgNO₃ in excess
Adding equal volumes of AgNO₃ and KI solutions
Adding AgNO₃ solution to KI solution, with KI in excess
Adding KI solution to AgNO₃ solution, with KI in smaller amount
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Protective power of lyophilic colloid
Purity of gold
Metallic gold
Electroplated gold
Purple of cassius is
Colloidal solution of Au
Colloidal solution of Pt
Colloidal solution of Ag
Colloidal solution of As
Smoke (a negatively charged colloid) is an example of :
Gas dispersed in liquid
Gas dispersed in solid
Solid dispersed in gas
Solid dispersed in solid
Fog is a colloidal solution of
Liquid particles dispersed in gas
Gaseous particles dispersed in a liquid
Solid particles dispersed in liquid
Solid particles dispersed in gas
The reaction between alkali and fat is called :
Saponification
Hydrolysis
Distillation
dehydration
Milk contains a protein that is very good for health. The protein is :
Caffeine
Calciferol
Keratin
Casein
The phenomenon observed when a beam of light is passed through a colloidal solution is
Cataphoresis
Delectrophoresis
Coagulation
Tyndall effect
Ultramicroscope works on the principle of :
Light reflection
Light absorption
Light scattering
Light polarization
The phenomenon observed when a beam of light is passed through a colloidal solution is
Cataphoresis
Delectrophoresis
Coagulation
Tyndall effect
In aerosol, the dispersion medium is
Solid
Liquid
Gas
Any of these
