Which of the following shows sublimation at room temperature?

Water

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Oil

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Ammonium chloride

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Sodium carbonate

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Solution

The correct option is C Ammonium chloride
$N H_{4} C l$ sublime when heated the substance changes directly from being solid to gas.
The gas does not consist of ammonium chloride molecules but ammonia and hydrogen chloride gas. This shows that the salt decomposes easily.

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Which of the following will not show the property of sublimation?

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