Colloids – Coagulation and Hardy-Schulze Rule

2022 1 question

1. Given below are two statements: Statement I: In the coagulation of negative sol, the flocculating power of the three given ions is in the order- $Al^{3+}>Ba^{2+}>Na^+$ Statement II: In the coagulation of positive sol, the flocculating power of the three salts is in the order- $NaCl>Na_2SO_4>Na_3PO_4$ In the light of the above statements, choose the most appropriate answer from the options given below: