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NEET Sample Paper NEET Sample Test Paper-77

  • question_answer
    Most of the compounds of transition metals are coloured in solid state or solutions. The transition metals which have either completely filled \[d-orbitals\] or completely empty \[d-orbitals\] are colourless. The colour of transition metal is due to

    A)  presence of unpaired d-electrons

    B)  small size

    C)  metallic nature

    D)  All of these

    Correct Answer: A

    Solution :

    Unpaired electrons undergo excitation from lower energy level to higher energy level, hence causes colour to transition metal ions. Then, phenomenon is called d-d transition.


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