NEET 2023 | Surface Chemistry Question 2 | Chemistry

This chapter is currently out of syllabus

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NEET 2023

MCQ (Single Correct Answer)

-1

Out of Syllabus

Which one is an example of heterogenous catalysis?

Hydrolysis of sugar catalysed by $$\mathrm{H}^{+}$$ ions.

Decomposition of ozone is presence of nitrogen monoxide.

Combination between dinitrogen and dihydrogen to form ammonia in the presence of finely divided iron.

Oxidation of sulphur dioxide into sulphur trioxide in the presence of oxides of nitrogen.

NEET 2023

MCQ (Single Correct Answer)

-1

Out of Syllabus

Pumice stone is an example of -

gel

solid sol

foam

sol

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

Out of Syllabus

Shown below are adsorption isotherms for a gas 'X' at temperatures T₁, T₂ and T₃ :

NEET 2022 Phase 2 Chemistry - Surface Chemistry Question 4 English

p and $${x \over m}$$ represent pressure and extent of adsorption, respectively. The correct order of temperatures for the given adsorption is :

$${T_1} = {T_2} > {T_3}$$

$${T_1} > {T_2} > {T_3}$$

$${T_3} > {T_2} > {T_1}$$

$${T_1} = {T_2} = {T_3}$$

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

Out of Syllabus

Given below ae two statements

Statement I:

In the coagulation of a negative sol, the flocculating power of the three given ions is in the order Al³⁺ > Ba²⁺ > Na⁺

Statement II:

In the coagulation of a positive sol, the flocculating power of the three given salts is in the order NaCl > Na₂SO₄ > Na₃PO₄

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

Both Statement I and Statement II are correct.

Both Statement I and Statement II are incorrect.

Statement I is correct but Statement II is incorrect.

Statement I is incorrect but Statement II is correct.

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