Medium
Which is an incorrect statement?
- ATyndall effect takes place in true solution.
- BColloidal Gold can be prepared by Bredig's arc method.
- CPhysical adsorption is multilayer adsorption at high pressure.
- DWhen excess of $AgNO_3$ is treated with $KI$ solution,then $AgI$ forms a positive charge sol.
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The reason for the stability of a lyophobic sol is
Medium
View SolutionThe white of an egg is partly coagulated by heating,which can be converted back into a colloidal sol by adding some pepsin and a little $HCl$. This process is called:
Medium
View SolutionIn Bredig's arc method,some alkali is added because:
Medium
View SolutionWhich of the following is a lyophobic colloidal solution?
The most effective coagulating agent for antimony sulphide sol is
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