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Why does ZnO appear yellow on …

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Why does ZnO appear yellow on heating ?

    • Posted by Piyush Barde 3 years, 11 months ago

    CBSE > Class 12 > Chemistry
    • 2 answers

    Ankit Baghel 3 years, 11 months ago

    Thnx @ yogita ingle .

    0Thank You

    Yogita Ingle 3 years, 11 months ago

    In ZnO, Zn2 ions occupy the interstitial sites and electrons are trapped in the interstitial sites for neutralization. Crystals that show such type of defects are generally colored. Zinc oxide is white in color but on heating, it turns into yellowbecause it loses oxygen reversibly at high temperature.

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