Question

in which category homogeneous
mixture or heterogeneous mixture would you place the colloids give any two important characteristics of colloid

Answer 1

Colloids are rather classified as heterogenous mixtures....as they don't completely dissolve in a solution rather just remain fused in it. to 
i)colloids allow light to pass through them (Tyndall effect)
ii)colloid particles don't dissolve in a solution and just remain fused in it as a mixture,