• Biological catalyst is :
    An amino acid
    A carbohydrate
    An enzyme
    Corbon molecule
  • Tyndall effect may be represented by :
    A colloid
    A solution
    A precipitate
    A solvent
  • Chemisroption is :
    Reversible
    First increases with an increase in temp. and then decreases
    The weak attractive interaction between adsorbent and adsorbate
    Multilayer of adsorbate is formed on the adsorbent
  • Which is an emulsion among the following :
    Wood
    Butter
    Milk
    Air
  • Chemisorption
    Does not depend upon pressure
    Decreases with increase in pressure
    Increase with the increase in pressure
    None of the above
  • Adsorption of a gas by solid depends upon
    Temperature
    Pressure
    Surface area of the solid
    All the above