Class XII

Ammonia is adsorbed by
  1. Silica
  2. Water
  3. Alcohol
  4. Charcoal
In physisorption, adsorption is generally
  1. Multilayered
  2. Monolayered
  3. Bilayered
  4. None of these
The example of heteropolar solution is
  1. Sulphur solution
  2. Starch solution in water
  3. Protein solution in water
  4. Rubber solution in water
Substances that alter the rate of a chemical reaction without being used up in a chemical reaction is known as
  1. -----Promoters -------------------------------------------------------- Promoters--------------------------------------------------- Promoters
  2. Catalyst
  3. Poisons
  4. Inhibitors
Flocculation value is expressed in terms of
  1. Grams/liter
  2. Moles/millilitre
  3. Moles/liter
  4. Millimoles/liter
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