Q:
      
      
         
            
Pieces of camphor placed on water move about rapidly. This is because of
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: C) surface tension         
         
Explanation: The Camphor slowly dissolves in the water lowering the latter's surface tension in the immediate neighbourhood. The stronger pull exerted by the uncontaminated portion of water brings about a movement of the surface and the camphor particles are carried along with it. When after sometime the whole surface settles for the reduced tension, the movement of the camphor too short.
       
      
      
      
          View Answer
          Report Error
          Discuss