NEETChemistryPeriodic Table and PeriodicityMultiple correct+4 / −1
In which of the following options the order of arrangement does not agree with the variation of property indicated against it ?
- AI < Br < Cl < F (increasing electron gain enthalpy)
- BLi < Na < K < Rb (increasing metallic radius)
- CAl3+ < Mg2+ < Na+ < F (increasing ionic size)
- DB < C < N < O (increasing first ionisation enthalpy)
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Correct answer: A, D
The correct order of increasing negative electron gain enthalpy is : I < Br < F < Cl and the correct order of increasing first ionisation enthalpy is B < C < O < N.
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