engineering recuitment NPCIL Stipendiary Trainee (Category II) Prelims 2025 Mock Test General Science Chemistry Periodic Table
The correct order of increasing size of the following species will be
1
Na+ < Al < F- < Mg2+
2
Mg2+ < Na+ < F- < Al
3
Na+ < Al < Mg2+ < F-
4
F- < Na+ < Mg2+ < Al