state gov Kerala PSC 10th Level (Common Preliminary Examination) Mock Test Series 2025 Chemistry P - Block Group 15 Elements (Nitrogen Family)
The tendency of group 15 elements to show -3 oxidation state follows the order
1
N < P < As < Sb < Bi
2
Bi < Sb < As < P < N
3
Bi < Sb < As < N < P
4
N < P < As < Bi < Sb