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

Options

A. `Al^(3+)lt Mg^(2+)lt Na^(+)lt F^(-)` (increaseing ionic size)
B. `B lt C lt N lt O` (increasing first ionisation enthalpy)
C. `I Gt Br gt Cl gt F` (increasing electron gain enthalpy
D. `Li lt Na lt K lt Rb` (increasing metallic radius)

Answer

B