Railways Sample Paper RRB (Assistant Loco Pilot) Sample Test Paper-12

  • question_answer
    What is the formula of potassium ion in the noble gas state?

    A)  \[{{K}^{+}}\]                  

    B)        \[{{K}^{2+}}\]                  

    C)  \[{{K}^{2-}}\]                 

    D)        \[{{K}^{-}}\]

    Correct Answer: A


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