Q. The arsenious sulphide sol has negative charge. The maximum coagulating power for precipitating it is of :
A) $0.1\ N\ Zn\left( NO_{3} \right)_{2}$
B) $0.1\ N\ {Na}_{3}{PO}_{4}$
C) $0.1\ N\ {ZnSO}_{4}$
D) $0.1\ N\ {AlCl}_{3}$
Explanation
(d)
More is the valence of effective ion, greater is its coagulating power. The Hardy-Schulze rule.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.