• Zigya Logo

    Surface Chemistry
    pdf download
    According to Langmuir absorption isotherm, the amount of gas adsorbed at very high pressures
    • reaches a constant limiting value
    • goes on increasing with pressure
    • goes on decreasing with pressure
    • increases first and decreases later with pressure

    A.

    reaches a constant limiting value
    149 Views
    Answer
    The sky looks blue due to
    • dispersion effect 
    • Reflection
    • Transmission
    • Scattering

    D.

    Scattering
    148 Views
    Answer
    Advertisement
    Zigya App

    Why are substances like platinum and palladium often used for carrying out electrolysis of aqueous solutions?

    Answer:

    The Plantium and palladium are used for electrolysis of aqueous solution due to the chemically inert in nature and good adsorptive capacity for hydrogen.
    Because Gases like hydrogen are absorbed on the surface of platinum and palladium (adsorption) and then passes into the bulk of the adsorbent (platinum and palladium).

     
    1699 Views
  • Switch
    • Advertisement
    What is adsorption?
    Answer:

    The phenomenon of attracting and retaining the molecules of a substance on the surface of a solid or liquid resulting in a higher concentration of the molecules on the surface is called adsorption.
    350 Views
    Answer
    The blue colour of water in the sea is due to
    • Refraction of the blue light by the impurities in sea water.
    • Reflection of blue sky by sea water.
    • Scattering of blue light by water molecules.
    • Absorption of other colours except blue colour by water molecules.

    C.

    Scattering of blue light by water molecules.
    131 Views
    Answer
    Advertisement
    Flag Popup Icon
    Flag it
    Submit
    Flag Popup Icon
    Switch to
  • Type
  • Category
    • flexipad
    Share It Icon
    Share it
    Share It
    Share it