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Given below are two statement: one labelled as Assertion A and the other is labelled as Reason R.
Assertion A: \( \mathrm{SO_2(g)} \) is adsorbed to a larger extent than \( \mathrm{H_2(g)} \) on activated charcoal
Reason R: \( \mathrm{SO_2(g)} \) has a higher critical temperature than \( \mathrm{H_2(g)} \)
In the light of the above statements, choose the most appropriate answer from the options given below.

Match List – I with List – II

Choose the most appropriate answer from the options given below:

Sodium stearate \( \mathrm{CH_3(CH_2)_{16}COO^-Na^+} \) is an anionic surfactant which forms micelles in Oil.
Choose the correct statement for it from the following:

Match List I with List II

List - I	List - II
Example of Colloids	Classification
(a) Cheese	(i) dispersion of liquid in liquid
(b) Pumice stone	(ii) dispersion of liquid in gas
(c) Hair cream	(iii) dispersion of gas in solid
(d) Cloud	(iv) dispersion of liquid in solid

Choose the most appropriate answer from the options given below:

\( 100 \, \text{ml} \) of \( 0.0018\% \) (w/v) solution of \( \text{Cl}^- \) ion was the minimum concentration of \( \text{Cl}^- \) required to precipitate a negative sol in one \( \text{h} \). The coagulating value of \( \text{Cl}^- \) ion is ___________. (Nearest integer)

When silver nitrate solution is added to potassium iodide solution then the sol produced is:

Which one of the following is correct for the adsorption of a gas at a given temperature on a solid surface?

Match List-I with List-II:

Choose the most appropriate answer from the options given below:

The charges on the colloidal CdS sol and \(\text{TiO}_2\) sol are, respectively.

10.

The INCORRECT statements below regarding colloidal solutions is:

11.

Select the graph that correctly describes the adsorption isotherms at two temperatures \( T_1 \) and \( T_2 \) (\( T_1 > T_2 \)) for a gas:
(\( x \) – mass of the gas adsorbed, \( m \)- mass of adsorbent, \( P \)-pressure)

12.

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

13.

\( \mathrm{CH}_4 \) is adsorbed on \( 1 \, \text{g} \) charcoal at \( 0^\circ \text{C} \) following the Freundlich adsorption isotherm. \( 10.0 \, \text{mL} \) of \( \mathrm{CH}_4 \) is adsorbed at \( 100 \, \text{mm} \) of Hg, whereas \( 15.0 \, \text{mL} \) is adsorbed at \( 200 \, \text{mm} \) of Hg. The volume of \( \mathrm{CH}_4 \) adsorbed at \( 300 \, \text{mm} \) of Hg is \( 10^{x} \, \text{mL} \). The value of \( x \) is _______ \( \times 10^{-2} \). (Nearest integer) (Use \( \log_{10} 2 = 0.3010 \), \( \log_{10} 3 = 0.4771 \))

14.

\( \mathrm{CO_2} \) gas adsorbs on charcoal following Freundlich adsorption isotherm. For a given amount of charcoal, the mass of \( \mathrm{CO_2} \) adsorbed becomes \( 64 \) times when the pressure of \( \mathrm{CO_2} \) is doubled. The value of \( n \) in the Freundlich isotherm equation is ______ \( \times 10^{-2} \). (Round off to the Nearest Integer)

15.

The sol given below with negatively charged colloidal particles is:

16.

Tyndall effect is more effectively shown by:

17.

Most suitable salt which can be used for efficient clotting of blood will be:

18.

The conditions given below are in the context of observing Tyndall effect in colloidal solutions:
(A) The diameter of the colloidal particles is comparable to the wavelength of light used.
(B) The diameter of the colloidal particles is much smaller than the wavelength of light used
(C) The diameter of the colloidal particles is much larger than the wavelength of light used.
(D) The refractive indices of the dispersed phase and the dispersion medium are comparable.
(E) The disperse phase has a very different refractive index from the dispersion medium.
Choose the most appropriate conditions from the options given below.

19.

Lyophilic sols are more stable than lyophobic sols because :

20.

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

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JEE Main 2021 24th Feb Evening Shift

Most suitable salt which can be used for efficient clotting of blood will be:

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JEE Mains | PYQ