1.

Mixing of positively charged colloidal solution with negatively charged colloidal solution brings __________. The decreasing order of coagulating power of Na^(+), Ba^(2+) and Al^(3+)for negatively charged colloidal solution is ________ .

Answer»

mutual COAGULATION , `Na^(+) gt Ba^(2+) gt Al^(3+)`
mutual coagulation , `Al^(3+) gt Ba^(2+) gt Na^(+)`
coagulation , `Na^(+) gt Ba^(2+) gt Al^(3+)`
PEPTIZATION , `Al^(3+) gt Ba^(2+) gt Na^(+)`

Solution :According to Hardy Schulze rule, the coagulating POWER of an ion DEPENDS upon its valency . Higher the valency of ion, greater is its coagulating power.


Discussion

No Comment Found

Related InterviewSolutions