In winter we sometimes end up in fogging a mirror with our breath. Have you ever wandered what kind of change is that? After all the fog disappears after some time.

Physical change

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Chemical change

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Cannot be ascertained as the combination of air was not given

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None of these

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Solution

The correct option is A
Physical change

Fogging a mirror during winter occurs when we breathe out. This is nothing but the formation of vapor due to sudden drop in temperature outside the mouth. As there is no new substance formed we can consider this as physical change.

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In winter we sometimes end up in fogging a mirror with our breath. Have you ever wandered what kind of change is that? After all the fog disappears after some time.

The correct option is A Physical change Fogging a mirror during winter occurs when we breathe out. This is nothing but the formation of vapor due to sudden drop in temperature outside the mouth. As there is no new substance formed we can consider this as physical change.

The correct option is A
Physical change

Fogging a mirror during winter occurs when we breathe out. This is nothing but the formation of vapor due to sudden drop in temperature outside the mouth. As there is no new substance formed we can consider this as physical change.