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    What is the colour of vapours formed on sublimation of iodine solid?
    Question

    What is the colour of vapours formed on sublimation of iodine solid?

    A.

    Yellow

    B.

    Orange

    C.

    Colourless

    D.

    Purple

    Correct option is D

    The correct answer is (d) Purple.
    · When solid iodine undergoes sublimation, it transforms directly from a solid to a gas without passing through the liquid phase. The vapors formed are purple in color.
    Information Booster:
    · Iodine is a halogen, and its solid form is greyish-black.
    · Upon heating, iodine sublimes to form purple vapors, which is a characteristic property of iodine.
    Additional Information:
    · Sublimation is the process in which a substance transitions from the solid phase directly to the gas phase without passing through a liquid state, typical of substances like iodine and dry ice.

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