JEE Main & Advanced Sample Paper JEE Main Sample Paper-19

  • question_answer Which of the following orders is wrong?

    A)  Electron affinity- \[-N<O<F<Cl\]

    B)  1st ionisation potential \[-Be<B<N<O\]

    C)  Basic property \[-MgO<CaO<FeO<F{{e}_{2}}{{O}_{3}}\]

    D)  Reactivity \[-Be<Li<K<Cs\]

    Correct Answer: B

    Solution :

     Correct order is \[B<Be<O<N.\]

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