Answer:
(i) Greater the surface area, greater the extent of adsorption.
If adsorbent is the form of powder form, free valencies are increased and thus
adsorption also increases. [1]
(ii)
Ester
hydrolysis is catalysed by acid. In the beginning no external acid (as
catalyst) is not taken. As hydrolysis takes place, reaction is slow. But after sometime
when 
(carboxylic
acid) is formed, it starts working as catalyst and rate is increased. [1]
(iii) 
is
positively charged colloidal sol due to adsorption of 
on it. 
is
negatively charged colloidal sol due to adsorption of 
on it.
When these two sols are mixed, coagulation takes place
[1]
You need to login to perform this action.
You will be redirected in
3 sec
