JEE Main Surface Chemistry Practice Questions With Solutions

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JEE Main Surface Chemistry Practice Questions with Solutions

Surface Chemistry deals with the study of chemical reactions occurring at surfaces, or at the surface and two different phases. It is one of the most important topics from the Chemistry section of the JEE Main entrance exam.The JEE Main Surface Chemistry Practice Questions with Solutions provide a lot of questions and solutions from this chapter for students to practice thoroughly and master this topic. Surface chemistry is an important topic from the Chemistry section of the JEE Main entrance exam, and therefore, requires more practice. You may expect at least 1 or 2 questions appearing from this chapter in the JEE Main’s question paper. The questions asked will involve both conceptual-type and numerical-based questions. So, it is recommended for students to study the topic well, so that they can solve both types of questions from this part easily. JEE Main aspirants can take the surface chemistry practice test whenever they want, as per their convenience. Through these tests, they can later assess their performance and focus on areas that need improvement.

Some of the important topics asked in the JEE Main entrance exam from the surface chemistry chapter are Adsorption, Emulsions, Colloids, Preparation & Purification of Colloids, Catalysis, and Applications of surface chemistry in daily life and industries. JEE Main aspirants must practice questions from all these important topics to be able to solve all problems from this part easily. The types of questions asked include multiple-choice types and assertion-reason types. The JEE Main Surface Chemistry Practice Test usually contains 10 to 15 multiple-choice questions from all the important topics, as well as its solutions for students to understand the concepts well. Practising the JEE Main Surface Chemistry Practice Questions with Solutions on a regular basis will allow candidates to recall all the basic concepts of surface chemistry accurately and easily. It will also improve the speed and accuracy of students, which is important for solving questions quickly in the exam. It is advised for students to solve at least 10 questions on surface chemistry from these practice tests every week. Practice tests also help students to improve their time management skills for the JEE Main exam.

JEE Main Chemistry Surface Chemistry Practice Questions

Mathematics Physics

Question 1.

The adsorbent used in adsorption chromatography is/are -

A. silica gel

B. alumina

C. quick lime

D. magnesia

Choose the most appropriate answer from the options given below :

C and D only

A only

B only

A and B only

Question 2.

'Adsorption' principle is used for which of the following purification method?

Chromatography

Sublimation

Distillation

Extraction

Question 3.

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : The diameter of colloidal particles in solution should not be much smaller than wavelength of light to show Tyndall effect.

Reason R : The light scatters in all directions when the size of particles is large enough.

In the light of the above statements, choose the correct answer from the options given below:

Both A and R are correct and R is the correct explanation of A

A is true but R is false

Both A and R are correct but R is NOT the correct explanation of A

A is false but R is true

Question 4.

What happens when a lyophilic sol is added to a lyophobic sol?

Film of lyophobic sol is formed over lyophilic sol.

Lyophilic sol is dispersed in lyophobic sol.

Film of lyophilic sol is formed over lyophobic sol.

Lyophobic sol is coagulated

Question 5.

Four gases A, B, C and D have critical temperatures $5.3, 33.2, 126.0$ and $154.3 K$ respectively. For their adsorption on a fixed amount of charcoal, the correct order is:

D > C > B > A

C > B > D > A

D > C > A > B

C > D > B > A

Question 6.

Ferric chloride is applied to stop bleeding because -

{FeCl}_{3}

reacts with the constituents of blood which is a positively charged sol.

Blood absorbs

{FeCl}_{3}

and forms a complex.

{Cl}^{-}

ions cause coagulation of blood.

{Fe}^{3 +}

ions coagulate blood which is a negatively charged sol.

Question 7.

The enthalpy change for the adsorption process and micelle formation respectively are

Δ H_{ads} > 0 and Δ H_{mic} < 0

Δ H_{ads} > 0 and Δ H_{mic} > 0

Δ H_{ads} < 0 and Δ H_{mic} < 0

Δ H_{ads} < 0 and Δ H_{mic} > 0

Question 8.

Which of the following represent the Freundlich adsorption isotherms?

JEE Main 2023 (Online) 8th April Morning Shift Chemistry - Surface Chemistry Question 5 English 1

Choose the correct answer from the options given below:

B, C, D only

A, B only

A, B, D only

A, C, D only

Question 9.

In figure, a straight line is given for Freundrich Adsorption ( $y = 3 x + 2.505$ ). The value of $\frac{1}{n}$ and $\log K$ are respectively.

JEE Main 2023 (Online) 1st February Evening Shift Chemistry - Surface Chemistry Question 26 English

0.3 and log 2.505

3 and 2.505

3 and 0.7033

0.3 and 0.7033

Question 10.

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R

Assertion A: Amongst $He, Ne, Ar$ and $Kr$ ; 1 $g$ of activated charcoal adsorbs more of $Kr$ .

Reason R: The critical volume $V_{c} ({cm}^{3} {mol}^{- 1})$ and critical pressure $P_{c}$ (atm) is highest for Krypton but the compressibility factor at critical point $Z_{c}$ is lowest for Krypton.

In the light of the above statements, choose the correct answer from the options given below

Both A and R are true and R is the correct explanation of A

A is false but R is true

Both A and R are true but R is NOT the correct explanation of A

A is true but R is false