What is the order in which conduction takes place in the materials ?(starting from the materials that is highly conductive to that of the least )

  1. Puremetals-->Nonmetals-->Alloys-->liquids-->gases

  2. Puremetals-->Alloys-->Nonmetals-->liquids-->gases

  3. Nonmetals-->Alloys-->Puremetals-->liquids-->gases

  4. All materials exhibit same conductivity


Correct Option: B

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