JEE Main 2022 — Surface Chemistry Question with Solution
From: JEE Main 2022 (Online) 27th June Morning Shift
Question
Match List-I with List-II
| List - I | List - II | ||
|---|---|---|---|
| (A) | Lyophilic colloid | (I) | Liquid-liquid colloid |
| (B) | Emulsion | (II) | Protective colloid |
| (C) | Positively charged colloid | (III) | FeCl + NaOH |
| (D) | Negatively charged colloid | (IV) | FeCl + hot water |
Choose the correct answer from the options given below :
Choose an option
Show full solutionCorrect option: A
Correct answer
A(A) - (II), (B) - (I), (C) - (IV), (D) - (III)
Step-by-step explanation
(A) Protective colloids are lyophilic colloids
(B) Emulsions are liquid in liquid colloidal solutions
(C) FeCl3 + hot water forms positively charged colloidal solution of hydrated ferric oxide.
(D) FeCl3 + NaOH forms negatively charged colloidal solution due to preferential adsorption of OH- ions
(B) Emulsions are liquid in liquid colloidal solutions
(C) FeCl3 + hot water forms positively charged colloidal solution of hydrated ferric oxide.
(D) FeCl3 + NaOH forms negatively charged colloidal solution due to preferential adsorption of OH- ions
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This is a previous-year question from JEE Main 2022, covering the Surface Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.