yeah thats b silly meh
bt surface chrge dnt decrease it bcums zero at isoeltronic point
At isoelectric point :
a) Colloidal particles becomes uncharged
2)colloidal sol becomes highly stable
3)Peptisation can be carried out
4)None of these
Reason:
Since the surface charge of particles at isoelectric point becomes les negative=>Coloumb repulsion decreases
also,binding of particles increases to some extent....[1]
yeah thats b silly meh
bt surface chrge dnt decrease it bcums zero at isoeltronic point
no surface charge wont be zero...it would be less negative,so that repulsion decreases and system becomes stable..