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QNEET-2016-Ch-1038: NEET 2016 Chemistry - Class 11 NEET-2016-Ch-1038 Solution: In which of the following options the order of arrangement does …

In which of the following options the order of arrangement does not agree with the variation of property indicated against it? I < Br < Cl < F (increasing electron gain enthalpy) Li < Na < K < Rb (increasing metallic radius) Al3+<Mg2+<Na+<F−Al^{3+} < Mg^{2+} < Na^+ < F^- (increasing ionic size) B < C < N < O (increasing first ionisation enthalpy)

Multiple Choice Options

  • A I < Br < Cl < F (increasing electron gain enthalpy)
  • B Li < Na < K < Rb (increasing metallic radius)
  • C Al 3+ < Mg 2+ < Na + < F −- _ (increasing ionic size)
  • D B < C < N < O (increasing first ionisation enthalpy)

Step-by-Step Verified Solution

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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