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) – (b), (ii) – (c), (iii) – (e), (iv) – (d)

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

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

Which of the following salt solutions would coagulate the colloid soloution formed when FeCl 3 is added to NaOH solution, at the fastest rate?

10 mL of 0 . 2 mol dm - 3 AlCl 3

10 mL of 0 . 1 mol dm - 3 Na 2 SO 4

10 mL of 0 . 1 mol dm - 3 Ca 3 PO 4 2

10 mL of 0 . 15 mol dm - 3 CaCl 2

MEDIUM

JEE Main

IMPORTANT

Earn 100

Among the following, the correct statement is:

50% studentsanswered this correctly

Important Questions on Surface Chemistry

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main - 7th April 2013>Q 17

The coagulating power of electrolytes having ions

{Na}^{+}

{Al}^{3 +}

and

{Ba}^{2 +}

for arsenic sulphide sol increases in the order,

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main - 6 September 2020 Shift 2>Q 18

For Freundlich adsorption isotherm, a plot of

\log (x / m) (y - axis)

and

\log p (x - axis)

gives a straight line, the intercept and slope fo rthe line is

0.4771 and 2

, respectively. The mass of gas, adsorbed per gram of adsorbent if the initial pressure is

0.04 atm

is _____

\times 10^{- 4} g

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main - 6 September 2020 Shift 1>Q 19

Kraft temperature is the temperature:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main - 5 September 2020 Shift 2>Q 20

Adsorption of a gas follows Freudlich adsorption isotherm. If

x

is the mass of the gas adsorbed on mass

m

of the adsorbent, the correct plot of

\frac{x}{m}

versus p is:

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main - 5 September 2020 Shift 1>Q 21

Identify the correct molecular picture showing what happens at the critical micellar concentration $(CMC)$ of an aqueous solution of a surfactant

Question Image

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main - 4th April 2015>Q 22

3 g

of activated charcoal was added to

50 mL

of acetic acid solution

(0.06 N)

in a flask. After an hour, it was filtered and the strength of the filtrate was found to be

0.042 N

. The amount of acetic acid adsorbed (per gram of charcoal) is:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main - 4 September 2020 Shift 2>Q 23

A sample of red ink (a colloidal suspension) is prepared by mixing eosine dye, egg white,

HCHO

and water. The component which ensures stability of the ink sample is :

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main - 4 September 2020 Shift 1>Q 24

Match the following:

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

Among the following, the correct statement is:

Important Questions on Surface Chemistry

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