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In general, H(2) gas is adsorbad on acti...

In general, `H_(2)` gas is adsorbad on activated charcoal to a less extent in comparison to the easily liquefiable gases due to

A

very strong van der Waals' force and low critical temperature

B

very weak van der Waals' force and low critical termperature

C

very strong van der Waals' force and high critical temperature

D

very weak van der Waals' force and high critical temperature

Text Solution

Verified by Experts

The correct Answer is:
B
`H_(2)` is a permanent gas hence , has low value of critical temperature and low van der Waals' force , due to these factors , it shows low extent of adsorption .
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H_(2) gas is adsorbed on activated charcoal to a very little extent in comparison to easily liquefiable gases due to ……. .

Assertion: A gas with higher critical temperature gets adsorbed to more extent than a gas with lower critical temperature. Reason: The easily liquefiable gases get adsorbed to more extent which have higher critical temperature.

Only the surface atoms in an adsorbent play an active role in adsorption. These atoms possess some residual force such as van der Waals forces and chemical forces. In the process of adsorption. Weak adsorbate is substituting by strong adsorbete. Activated charcoal used in the gas mask is already exposed to the atmospheric air, so gases and water vapours in air are adsorbed on its surface. When the mask is exposed to chlorine atmosphere, the gases are displaced by chlorine. In general, easily liquefiable gases such as CO_(2),NH_(3),Cl_(2), and SO_(2) are adsorbed to a greater extent than the elemental gases, e.g., H_(2),N_(2),O_(2), He, etc. Gas mask works on the principle of

Only the surface atoms in an adsorbent play an active role in adsorption. These atoms possess some residual force such as van der Waals forces and chemical forces. In the process of adsorption. Weak adsorbate is substituting by strong adsorbete. Activated charcoal used in the gas mask is already exposed to the atmospheric air, so gases and water vapours in air are adsorbed on its surface. When the mask is exposed to chlorine atmosphere, the gases are displaced by chlorine. In general, easily liquefiable gases such as CO_(2),NH_(3),Cl_(2), and SO_(2) are adsorbed to a greater extent than the elemental gases, e.g., H_(2),N_(2),O_(2), He, etc. Gas mask contaons

Only the surface atoms in an adsorbent play an active role in adsorption. These atoms possess some residual force such as van der Waals forces and chemical forces. In the process of adsorption. Weak adsorbate is substituting by strong adsorbete. Activated charcoal used in the gas mask is already exposed to the atmospheric air, so gases and water vapours in air are adsorbed on its surface. When the mask is exposed to chlorine atmosphere, the gases are displaced by chlorine. In general, easily liquefiable gases such as CO_(2),NH_(3),Cl_(2), and SO_(2) are adsorbed to a greater extent than the elemental gases, e.g., H_(2),N_(2),O_(2), He, etc. In physical adsorption, the forces associated are

Only the surface atoms in an adsorbent play an active role in adsorption. These atoms possess some residual force such as van der Waals forces and chemical forces. In the process of adsorption. Weak adsorbate is substituting by strong adsorbete. Activated charcoal used in the gas mask is already exposed to the atmospheric air, so gases and water vapours in air are adsorbed on its surface. When the mask is exposed to chlorine atmosphere, the gases are displaced by chlorine. In general, easily liquefiable gases such as CO_(2),NH_(3),Cl_(2), and SO_(2) are adsorbed to a greater extent than the elemental gases, e.g., H_(2),N_(2),O_(2), He, etc. Which of the following gases will be most easily adsorbed by the charcoal in the gas mask?

Only the surface atoms in an adsorbent play an active role in adsorption. These atoms possess some residual force such as van der Waals forces and chemical forces. In the process of adsorption. Weak adsorbate is substituting by strong adsorbete. Activated charcoal used in the gas mask is already exposed to the atmospheric air, so gases and water vapours in air are adsorbed on its surface. When the mask is exposed to chlorine atmosphere, the gases are displaced by chlorine. In general, easily liquefiable gases such as CO_(2),NH_(3),Cl_(2), and SO_(2) are adsorbed to a greater extent than the elemental gases, e.g., H_(2),N_(2),O_(2), He, etc. Which of the following gases will substitute O_(2) from adsorbed charcoal?

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SURFACE CHEMISTRY-EXERCISE 2
  1. The role of the activation charcoal in gas mask used coal mine is

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  2. Gas mask is prepared on the basis of adsorption because

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  3. Adsorption of gaseous moleculesof hydrogen on Pd is known as

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  4. Point out the correct statement .

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  5. Plot of log x/m against log p is a straight line inclined at an angle ...

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  6. Choose the incorrect statement .

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  7. Powdered substances are more effective adsorbents than their crystalli...

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  8. The linear plot for Freundich adsorption isotherm is

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  9. In general, H(2) gas is adsorbad on activated charcoal to a less exten...

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  10. For a positively charged sol , the flocculating power of KCl , MgCl(2)...

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  11. LANGMUIR ISOTHERM

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  12. Which of the following is the correct approximate value of ratio of si...

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  13. How will you test whether a given solution is a colloidal solutio...

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  14. Which of the following is incorrect about adsorption ?

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  15. In physisorption , adsorbent does not show specificity for any particu...

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  16. Adsorption is always exothermic in nature , Do you agree ?

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  17. A colloidal solution is subjected to an electrical field. The particle...

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  18. Identify the gas which is readily adsorbed by activated charcoal .

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  19. In physisorption , the molecules of adsorbate held to the adsorbent by

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  20. In general , which of the following gets adsorbed readily ?

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