Question

Which is the correct statement ?

• A. $H_{2}^{+}$ion is more stable than H₂ molecule
• B. The bond dissociation energy for $H_{2}^{+}$ ion is +ve though it has a bond order of 0.5
• C. The bond order of $H_{2}^{+}$ ion is 0.5 and hence $H_{2}^{+}$ ion does not exist.
• D. The electron density along a line joining the two centres of the hydrogen nuclei in $H_{2}^{+}$ will always be greater than at the corresponding points along a similar line for H₂.

Answer 1

Answer: (B)

The bond dissociation energy for $H_{2}^{+}$ ion is +ve though it has a bond order of 0.5

Answer 2

The bond energy of $H_{2}^{+}$ ion will be +ve though it has a bond order of 0.5 because electrons are present between the two nuclei and electrostatistic force of attraction exists.