Question

Correct order of flocculating value of electrolytes NaCl, K2 SO4, Na3 PO4 and K4 [Fe (CN)6 ] for coagulation of positive Fe(OH)3 solis (a)NaCl> K2 SO4 > Na3 PO4 > K4 [Fe (CN)6 ] (b)K2 SO4 > Na3 PO4 > K4 [Fe (CN)6 ]> NaCl (c)NaCl> Na3 PO4 > K4 [Fe (CN)6 ]> K2 SO4 (d) K4 [Fe (CN)6 ]> Na3 PO4> K2 SO4 >NaCl​

Answer 1

Answer:

AgI/Ag

+

is a positively charged sol. So, electrolyte bearing maximum negative charge will be the most effective electrolyte. So, K

4

[Fe(CN)

6

] will be the most effective electrolyte.