JEE Main 2020 (Online) 4th September Evening Slot | Surface Chemistry Question 71 | Chemistry

A sample of red ink (a colloidal suspension) is prepared by mixing eosin dye, egg white, HCHO and water. The component which ensures stability of the ink sample is :

HCHO

Water

Eosin dye

Egg white

JEE Main 2020 (Online) 4th September Morning Slot

MCQ (Single Correct Answer)

-1

Out of Syllabus

Match the following :

(i) Foam	(a) smoke
(ii) Gel	(b) cell fluid
(iii) Aerosol	(c) jellies
(iv) Emulsion	(d) rubber
	(e) froth
	(f) Milk

(i)-(e), (ii)-(c), (iii)-(a), (iv)-(f)

(i)-(d), (ii)-(b), (iii)-(a), (iv)-(e)

(i)-(d), (ii)-(b), (iii)-(e), (iv)-(f)

(i)-(b), (ii)-(c), (iii)-(e), (iv)-(d)

JEE Main 2020 (Online) 3rd September Evening Slot

MCQ (Single Correct Answer)

-1

Out of Syllabus

An ionic micelle is formed on the addition of :

excess water to liquid JEE Main 2020 (Online) 3rd September Evening Slot Chemistry - Surface Chemistry Question 73 English Option 1

excess water to liquid JEE Main 2020 (Online) 3rd September Evening Slot Chemistry - Surface Chemistry Question 73 English Option 2

liquid diethyl ether to aqueous NaCl solution

sodium stearate to pure toluene

JEE Main 2020 (Online) 3rd September Morning Slot

MCQ (Single Correct Answer)

-1

Out of Syllabus

Tyndall effect is observed when:

The diameter of dispersed particles is similar to the wavelenght of light used.

The diameter of dispersed particles is much smaller than the wavelength of light used.

The diameter of dispersed particles is much larger than the wavelength of light used.

The refractive index of dispersed phase is greater than that of the dispersion medium.

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