JEE Main & Advanced Chemistry Classification of Elements and Periodicity in Properties Question Bank Valency and oxidation state

  • question_answer Which of the following group of elements eliminates electron easily

    A) N, P, As

    B) O, S, Se

    C) Li, Na, K

    D) Cl, Ba, I

    Correct Answer: C

    Solution :

    Li, Na, K, contains only one \[{{e}^{-}}\] in outer most orbit.


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