In which of the following arrangements the order is not according to the property indicated against it?

In which of the following arrangements the order is not according to t

1.	In which of the following arrangements the order is not according to the property indicated against it?
Answer» `Al^(3+) lt Mg^(2+) lt Na^(+) lt F^(-) `- increasing ionic SIZE <BR>`B lt C lt N lt O ` - increasing FIRST ION ization enthalpy `I lt Br lt F lt Cl ` - increasing electron gain enthalpy `Li lt Na lt K lt Rb` - increasing metallic radius Solution :`B lt C lt N lt O ` - increasing first ion ization enthalpy `{:("First Ionisation energy of Nitrogen"):} gt {:("First ionisation energy of Oxygen"):}` `Delta_(i)H_(1)(N) gt Delta_(i)H_(1)(O)` Which is `1402 gt 1214 " kJ mol"^(-1)`