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  5. The d-and f-Block Elements / d तथा f ब्लॉक के तत्व

JEE Main & Advanced Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व Question Bank General Characteristics

  • question_answer
    The hardness of \[Cr\] is due to ...... and metallic lusture is due to .......

    A) Covalent bond, metallic bond

    B) Covalent bond, hydrogen bond

    C) Metallic bond, covalent bond

    D) Metallic bond, hydrogen bond

    Correct Answer: A

    Solution :

      Covalent bond is constituted by electrons of d-orbitals and lusture is due to free electrons of s-orbital in metallic bond.


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