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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-6

  • question_answer
    An element which is not found in nature is

    A)  Pt                   

    B)  K

    C)  Zn                   

    D)  Pm

    Correct Answer: D

    Solution :

    Promethium pm is a chemical element with atomic number 61. It is classified as lanthanide and is a rare earth metal.


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