Home
Class 11
CHEMISTRY
Only the surface atoms in an adsorbent p...

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

A

Physical adsorption

B

Chemical adsorption

C

both physical and chemical adsorption

D

absorption

Text Solution

Verified by Experts

The correct Answer is:
C
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ADSORPTION AND CATALYSIS

    OP TANDON|Exercise SELF ASSESSMENT Section I|8 Videos

  • ADSORPTION AND CATALYSIS

    OP TANDON|Exercise SELF ASSESSMENT Section II|5 Videos

  • ADSORPTION AND CATALYSIS

    OP TANDON|Exercise Matrix Matching Type Questions|7 Videos

  • AROMATIC HYDROCARBONS (ARENES)

    OP TANDON|Exercise EXAMPLES|24 Videos

Similar Questions

Explore conceptually related problems

What is the role of activated charcoal in 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?

Knowledge Check

  • 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

    A
    Charcoal granules
    B
    Calcium carbonate
    C
    Fuller's earth
    D
    Powdered charcoal

  • 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

    A
    Ionic
    B
    covalent
    C
    van der Waals
    D
    `H-bonding

  • 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?

    A
    `H_(2)`
    B
    `SO_(2)`
    C
    `N_(2)`
    D
    `O_(2)`

    • Similar Questions

    Explore conceptually related problems

    Only the surface atoms in an adsorbent ,play an active role in adsorption .These atoms posses some residual forces likes van der waal's forces and chemical forces. ltbRgt In the process of adsorption ,weak adsorbate is constituted by strong adsorbate. Activated charcoal used in gas mask is already exposed to the atmospheric air, so the gases and water vapours in the air are adsorbed on its surface. When the mask is exposed to chlorine atmosphric, the gases are displaced by chlorine. Porous and finely powered solids ,e.g, charcoal and Fuller's earth adsorb more as compared to the hard non-porous material.It is due to this property that the powered charcoal is used in gas masks. In general, easily liquefiable gases likes CO_(2) ,NH_(3) , Cl_(2) and SO_(2) ,etc. are adsorbed to a greater extent than the elemental gases , e.g, H_(2) , N_(2) , O_(2) , He, etc. Which of the following gas molecules has maximum value of enthalpy of physisorption in a gas mask ?

    The most adsorbed gas on activated charcoal is

    In the case of adsorption the concentration of adsorbate is

    The most adsorbed gas on activated chrocal is

    The most a adsorbed gas on activated charcoal is:

    Home
    Profile