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Oils spread over surface of water whereas water do not spreads over the surface of it why |
| The surface tension of the water is more than that of oil.Therefore,when oil is poured over water,the greater value of surface tension of water pulls oil in all directions,and as such it spreads on the water.On the other hand,when water is poured over oil,it does not spread over it because the surface tension of oil being less than that of water,is not able to pull water over it. |
