select the correct statement (s) : A sol is prepared by addition of excess of AgNO_(3) solution in Kl solution . The charge likely to develop on colloidal particle is positive, the effects o pressure on physical adsorption is high if temperature is low, Ultracentrifugation process is used for preparation of colloids, Gold number is the index for extent of gold plating done.
A sol is prepared by addition of excess of AgNO_(3) solution in KI solution . The charge likely to develop on colloidal particles is :
SnO_2 forms a positively charged colloidal solution in acidic medium and a negetively charged colloidal solution in basic medium. Explain.
colloidal solution of gold is prepared by :
Out of BaCl_2 and KCl which one is more effective in causing coagulation of negatively charged colloidal sol. Give reason.
Which is used for ending charge on colloidal solution
