JEE Main 2021 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 17 March 2021, Shift 1, Chemistry Q32

Question 32 of 90 in this shift, Chemistry question 2 of 30, Section A.

A colloidal system consisting of a gas dispersed in a solid is called a/an :

(1)aerosol
(2)solid solOfficial answer
(3)foam
(4)gel

Official answer

Option 2

NTA final key.

Chapter: Surface Chemistry
Topic: Colloids
Idea tested: Colloid Classification by State

Same idea in other shifts

Asked 6× in all

6 Apr 2023, Shift 2 · Q87The number of colloidal systems from the following, which will have 'liquid' as the dispersion medium, is ______________. Gem stones,…MediumNumerical value
27 Jun 2022, Shift 1 · Q64Match List - I with List - II. List - I (A) Lyophilic colloid (B) Emulsion (C) Positively charged colloid (D) Negatively charged colloid…EasyMatch the list
4 Aug 2021, Shift 2 · Q31Match List-I with List-II : List-I : Examples of Colloids A. Paints B. Hair cream C. Whipped cream D. Cheese List-II : Type of Colloid I.…EasyMatch the listHas a figure
25 Jul 2021, Shift 2 · Q33Match List I with List II : List - I Example of Colloids (a) Cheese (b) Pumice stone (c) Hair cream (d) Cloud List - II Classification (i)…EasyMatch the list
4 Sep 2020, Shift 1 · Q26Match the following : (i) Foam (a) smoke (ii) Gel (b) cell fluid (iii) Aerosol (c) jellies (iv) Emulsion (d) rubber (e) froth (f) milkEasyMatch the list

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.