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NEET Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank Self Evaluation Test - The d-and f-Block Elements

  • question_answer
    Zinc and mercury do not show variable valency like d-block element because

    A) they are soft.

    B) their d-shells are complete.

    C) they have only two electrons in the outermost shell.

    D) their d-shells are incomplete.

    Correct Answer: B

    Solution :

    [b] Zn and Hg have d-shells completely filled hence they do not exhibit variable valency.


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