Assignment

1. Gravimetric analysis measures the ------ of a material formed in the reaction of the analyte with the reagent.

   1. Mass
   2. Density
   3. Volume

2. ----- is a type of co-precipitation in which impurities are trapped within the growing crystal.

   1. Nucleation
   2. Occlusion
   3. Crystallization

3. Sometimes a precipitate standing in contact with the mother liquor becomes contaminated by the precipitation of an impurity on top of the desired precipitate. This phenomenon is called ---------

   1. Co-precipitation
   2. Post precipitation
   3. Digestion

4. A colloid is solid made up of particles having diameters less than ------ cm.

   1. 10^-7
   2. 10^-4
   3. 10^-22

5. ....... is a process in which a minimum number of atoms, ions or molecules join together to give a stable solid.

   1. Nucleation
   2. Occlusion
   3. Adsorption