1.

Name the four negatively charged sols.

Answer» The following are the negatively charged sols.
`to` Metal sols Eg : Ag, Au-sols.
`to` Acid dye stuffs Eg : eosinsol.
`to` Metallic suphides sols Eg : `ArS_(3), CdS` sols.
`to` Sols of starch, gum, clay etc.


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