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Question

It is easy to wash clothes in hot water because its:

A
Surface tension is more
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B
Surface tension is less
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C
Consumes less soap
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D
None of these
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Solution

The correct option is B Surface tension is less
As we know, when temperature increases, the surface tension decreases. Reduction in surface tension of water increases its wettability, therefore it can easily wash out the dirt from the clothes.

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