JEE PYQ: Surface Chemistry Question 3
Question 3 - 2021 (17 Mar Shift 2)
Type: MCQ
For the coagulation of a negative sol, the species below, that has the highest flocculating power is:
(a) $\text{SO}_4^{2-}$
(b) $\text{Ba}^{2+}$
(c) $\text{Na}^+$
(d) $\text{PO}_4^{3-}$
Show Answer
Answer: (a)
Solution
To coagulate a negative sol, a cation with higher charge has higher coagulation value. $\text{Ba}^{2+}$ has the highest positive charge among the cations listed.
BETA
