1
WB JEE 2020
MCQ (Single Correct Answer)
+1
-0.25
Among the following, the ion which will be more effective for flocculation of Fe(OH)3 solution is :
A
$$PO_4^{3 - }$$
B
$$SO_4^{2 - }$$
C
$$SO_3^{2 - }$$
D
$$NO_3^{ - }$$
2
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
Point out the false statement.
A
Colloidal sols are homogeneous
B
Colloids carry +ve or $$-$$ve charges
C
Colloids show Tyndall effect
D
The size range of colloidal particles is 10-1000 $$\mathop A\limits^o $$
Questions Asked from MCQ (Single Correct Answer)
WB JEE Subjects