Which of the following describes surface tension in water?Choose 1 answer:Choose 1 answer:(Choice A) Surface tension occurs due to ionic bonding.ASurface tension occurs due to ionic bonding.(Choice B) Surface tension is caused by water molecules repelling one another.BSurface tension is caused by water molecules repelling one another.(Choice C) Surface tension allows water to support small objects if they are placed carefully on its surface.CSurface tension allows water to support small objects if they are placed carefully on its surface.(Choice D) Surface tension of water is weakened by hydrogen bonding.DSurface tension of water is weakened by hydrogen bonding.
Question
Which of the following describes surface tension in water?Choose 1 answer:Choose 1 answer:(Choice A) Surface tension occurs due to ionic bonding.ASurface tension occurs due to ionic bonding.(Choice B) Surface tension is caused by water molecules repelling one another.BSurface tension is caused by water molecules repelling one another.(Choice C) Surface tension allows water to support small objects if they are placed carefully on its surface.CSurface tension allows water to support small objects if they are placed carefully on its surface.(Choice D) Surface tension of water is weakened by hydrogen bonding.DSurface tension of water is weakened by hydrogen bonding.
Solution
The correct answer is (Choice C) Surface tension allows water to support small objects if they are placed carefully on its surface.
Surface tension is a property of liquid that allows it to resist an external force. It is caused by the cohesive forces between liquid molecules. In the case of water, these cohesive forces are due to hydrogen bonding. These forces pull the water molecules at the surface towards the rest of the water, creating a "skin" that can support small objects if they are placed carefully on the surface.
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