Theory:

Substances exist in three physical states (phases), namely solid, liquid, and gas.
 
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States of matter
 
Let us see the general characteristics of states of matter:
 
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Packing of molecules
 
Solids:
  • In solid, the molecules are closely packed.
  • They have definite shape and volume.
  • Due to their arrangement, they have a strong intermolecular force and less intermolecular space.
Liquid:
  • In liquid, the molecules are loosely packed.
  • They do not have a definite shape, but they do have a definite volume.
  • Due to their arrangement, they have a less intermolecular force and more intermolecular space compared to solids.
Gases:
  • In gases, the molecules are very loosely packed.
  • They do not have a definite shape and volume.
  • Due to their arrangement, they have a very weak intermolecular force and a very large intermolecular space.
Both the solvent and the solute in binary solutions can exist in any form of the above mentioned physical states.

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Different types of binary solutions
 
However, the solvent accounts for the majority of the solution. The physical state is the primary factor that determines the characteristics of the solution.