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Q. |
Pieces of camphor placed on water move about rapidly. This is because of - |
A. | diffusion |
B. | viscosity |
C. | surface tension |
D. | capillarity |
Answer» C. surface tension | |
Explanation: The Camphor slowly dissolves in the water lowering the latter’s surface tension in the immediate neighborhood. 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. |
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