Question:
Which of the following orders is not correct for the given property?
Which of the following orders is not correct for the given property?
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Ionization enthalpy increases across a period and decreases down a group.
Updated On: Jun 6, 2025
- Li<Na<K - metallic radius
- Br<F<Cl - electron gain enthalpy
- C<N<O - first ionization enthalpy
- Mg$^{2+}$<Na$^+$<F$^-$ - ionic radius
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The Correct Option is C
Solution and Explanation
For ionization enthalpy, oxygen has higher ionization enthalpy than nitrogen due to its smaller size and higher effective nuclear charge. Hence, the correct order should be N<O<C.
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