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Question

Martha mixed some marble powder with dry ice. On keeping the mixture in open air for a few minutes, the dry ice vanished and only the dry powder was left behind.

The dry ice vanished because of


A

Evaporation

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B

Sublimation

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C

Condensation

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D

Freezing

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Solution

The correct option is B

Sublimation


The dry ice gets directly converted from the solid state to the gaseous state, without passing through the liquid state. This process is known as sublimation.

The correct answer is B.


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