JEE PYQ: Surface Chemistry Question 4
Question 4 - 2021 (18 Mar Shift 2)
Type: MCQ
The charges on the colloidal CdS sol and $\text{TiO}_2$ sol are, respectively:
(a) positive and positive
(b) positive and negative
(c) negative and negative
(d) negative and positive
Show Answer
Answer: (c)
Solution
CdS sol $\rightarrow$ negative sol
$\text{TiO}_2$ sol $\rightarrow$ positive sol