Arrange the following in decreasing Lewis acid strength -PF3, PCI3, PBr3, Pl3
(a) Pl3 > PBr3 > PCl3 > PF3
The substances which behave as colloidal solutions at higher concentration are called
(a) associated colloids
Which of the following is not a method of removing impurities from a colloidal sol?
Movement of dispersion medium under the influence of electric field is known as
Why is alum added to water containing suspended impurities?
(b) To coagulate the suspended impurities