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
Related Questions
Blue colour of the sky is due to
Reflection of sunlight by the oceans
Absorption of sunlight by the ozone layer
Scattering of sunlight by air molecules
Emission of blue light by atmospheric gases
Which is an emulsifier?
Soap
Oil
NaCl
Water
How does the zeta potential relate to the tendency of colloidal particles to aggregate?
High zeta potential increases aggregation tendency.
Zeta potential has no effect on aggregation.
Low zeta potential decreases aggregation tendency.
Low zeta potential increases aggregation tendency.
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
Surface tension of lyophilic sols is :
Lower than
More than
Equal to
None of these
Clouds are a colloidal system of:
Air in water
Water droplets in air
Dust in air
Ice crystals in air
Soaps are generally prepared from :
Fats and oils
Mineral acids
Strong bases
Esters
Which one of the following methods is commonly used for destruction of colloid?
Dialysis
Condensation
Filtration by animal membrane
By adding electrolyte
Below critical micelle concentration (CMC)
Salt behaves as normal electrolyte
Substances like grease, fat dissolve by emulsification
The viscosity of solution is very high
Surfactant molecules undergo association to form cluster
