Match List - I with List - II List - I (process) List - II (catalyst) (a) Deacon's process (i) ZSM - 5 (b) Contact process (ii) CuCl 2 (c) Cracking of hydrocarbons (iii) Ni (d) Hydrogenation of vegetable oils (iv) V 2 O 5 Choose the most appropriate answer from the options given below-

a - ii , b - iv , c - i , d - iii

a - i , b - ii , c - ii , d - iv

a - iii , b - i , c - iv , d - ii

a - iv , b - ii , c - i , d - iii

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

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main 18 March 2021 Shift 2>Q 1

EASY

JEE Main

IMPORTANT

Earn 100

The charges on the colloidal $CdS$ sol and ${TiO}_{2}$ sol are, respectively :

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 18 March 2021 Shift 1>Q 2

Match List $- I$ with List $- II$

	List $- I$ (process)		List $- II$ (catalyst)
(a)	Deacon's process	(i)	$ZSM - 5$
(b)	Contact process	(ii)	${CuCl}_{2}$
(c)	Cracking of hydrocarbons	(iii)	$Ni$
(d)	Hydrogenation of vegetable oils	(iv)	$V_{2} O_{5}$

Choose the most appropriate answer from the options given below-

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main 17 March 2021 Shift 2>Q 3

For the coagulation of a negative sol, the species below, that has the highest flocculating power is:

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main 17 March 2021 Shift 1>Q 4

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

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main 16 March 2021 Shift 2>Q 5

The INCORRECT statements below regarding colloidal solutions is :

EASY

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main - 9th January 2019 Shift 2>Q 6

For coagulation of arsenious sulphide sol, which of the following salt solutions will be most effective?

MEDIUM

JEE Main

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR CHEMISTRY>Chapter 11 - Surface Chemistry>JEE Main - 9th January 2019 Shift 1>Q 7

Adsorption of a gas follows Freundlich adsorption isotherm. In the given plot, $x$ is the mass of the gas adsorbed on mass $m$ of the adsorbent at pressure $P . \frac{x}{m}$ is proportional to:

Question Image