MCQ
Correct order of electron affinity ?
- ✓Pnicogen < Chalcogen < Halogen
- BChalcogen < Pnicogen < Halogen
- CHalogen < Pnicogen < Chalcogen
- DChalcogen < Halogen < Pnicogen
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$(a)$ $O_2^ - ,{O_2}$ $(b)$ ${N_2},N_2^ +$ $(c)$ $NO^+, NO^-$
