Which among the following materials are used to reduce surface tension of water?
A
Surfactants
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B
Carbonates
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C
Aldehydes
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D
All the above
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Solution
The correct option is A Surfactants Surfactants are the materials which are used to reduce surface tension of water.The property of a substance of spreading on a surface is called surface activity and the substance is said to be a surfactant.