Which statements are correct about colloidal solution ?

Options

A. `"Coagulating value" prop (1)/("Coagulating power")`
B. Coagulating value `prop` charge on effective ion
C. Gold number `prop (1)/("Protective power")`
D. Scattering `or (1)/(lambda^4)`

Answer

A, C, D

Explanation

More is the charge on effective ion (ion having charge opposite to sol), more is its coagulating power, lesser is coagulating value.