NEET2011ChemistryChemical Bonding and Molecular StructureActual
The correct statement with regard to H ₂⁺ and H ₂⁻ is
Options
- Aboth H ₂⁺ and H ₂⁻ are equally stable
- Bboth H ₂⁺ and H ₂⁻ do not exist
- CH ₂⁻ is more stable than H ₂⁺
- DH ₂⁺ is more stable than H ₂⁻
Correct answer
D. H ₂⁺ is more stable than H ₂⁻
Step-by-step solution
H ₂⁺: 1 s^1, 1 s^0 Bond order = 1 2 H ₂⁻: 1 s^2, 1 s^1 Bond order = 2-1 2 = 1 2 The bond order of H ₂⁺ and H ₂⁻ are same but H ₂⁺ is more stable than H ₂⁻ . It is due to the presence of one electron in the antibonding molecular orbital in H ₂⁻ .