Question

In which of the following options the order of arrangement does not agree with the variation of the property indicated against it?

विकल्प

• I < Br < Cl < F (increasing electron gain enthalpy)

• Li < Na < K < Rb (increasing metallic radius)

• Al³⁺ < Mg²⁺ < Na⁺ < F⁻ (increasing ionic size)

• B < C < O < N (increasing first ionisation enthalpy)

Answer 1

I < Br < Cl < F (increasing electron gain enthalpy)