Question
Question: sol can be more easily coagulated by \(\mathrm { NaPO } _ { 4 }\) in comparison than KCl because...
sol can be more easily coagulated by NaPO4 in comparison than KCl because
A
(a) Mass of NaPO4 is more than KCl hence it is more effective than KCl
A
(b) Phosphate ion has higher negative charge than Cl− ion hence are more effective for coagulations
A
(c) KCl is more soluble than hence less effective for coagulations
A
(d) ions are more effective than ions for coagulations
Explanation
Solution
(b)
Sol. Ferric hydroxide is a positively charged sol hence ions carrying negative charge can coagulate it. Since PO43− has higher negative charge than Cl−hence it is more effective for coagulations.