JEE Main 2022 · 27 Jun · Shift 1 · Chemistry Q64

← JEE Main 2022 · 27 Jun · Shift 1

ChemistryList match+4 / -1Question 64 of 90

Match List - I with List - II.

Choose the correct answer from the options given below :

List - I

A
Lyophilic colloid
B
Emulsion
C
Positively charged colloid
D
Negatively charged colloid

List - II

I
Liquid-liquid colloid
II
Protective colloid
III
$\mathrm{FeCl_3}$ + NaOH
IV
$\mathrm{FeCl_3}$ + hot water

(A) - (II), (B) - (I), (C) - (IV), (D) - (III)

(A) - (III), (B) - (I), (C) - (IV), (D) - (II)

(A) - (II), (B) - (I), (C) - (III), (D) - (IV)

(A) - (III), (B) - (II), (C) - (I), (D) - (IV)

Answer and worked solution

Official answer: A

Match. Lyophilic colloids act as protective colloids (II); an emulsion is liquid-liquid (I); $\mathrm{FeCl_3}$ + hot water gives positive $\mathrm{Fe_2O_3\cdot xH_2O}$ sol (IV); $\mathrm{FeCl_3}$ + NaOH gives a negative sol (III).

(A)

Topics:Colloids Emulsions

← Previous question Next question →

JEE Main 2022 · 27 Jun · Shift 1, Chemistry question 64