Easy MCQ +4 / -1 PYQ · JEE Mains 2021

The charges on the colloidal CdS sol and TiO2 sol are, respectively :

  1. A positive and positive
  2. B positive and negative
  3. C negative and negative
  4. D negative and positive Correct answer

Solution

Oxides &amp; Hydroxide sol are positive so TiO<sub>2</sub> is positive sol.<br><br> Sulphide sol are negatively charge so CdS is negatively charge sol.

About this question

Subject: Chemistry · Chapter: Surface Chemistry · Topic: Adsorption

This question is part of PrepWiser's free JEE Main question bank. 64 more solved questions on Surface Chemistry are available — start with the harder ones if your accuracy is >70%.

More Surface Chemistry questions

Drill 25 more like these. Every day. Free.

PrepWiser turns these solved questions into a daily practice loop. Chapter-wise drills, full mocks, AI doubt chat. No auto-renew.

Start free →