On heating iodine crystals, they ___________ .

melt

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boil

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sublimate

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evaporate

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Solution

The correct option is C sublimate
Sublimation is the process in which solid converts directly into gas bypassing the liquid state. The substance which undergoes sublimation is called a sublimate. Few examples include iodine, camphor, ammonium chloride and moth balls.

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Similar questions

Give reason why a crystal of iodine on slow heating in a closed flask, turns into vapour and fills the complete flask.

(I_{2})

Crystals of a substance change their colour on heating but regain it after sometime,when they cooldown .

a) name one such substance.

b) explain the phenomena involved.

Heating of iodine is a _______ change.

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