Chemistry · PYQ NEET UG 2022

Which amongst the following is INCORRECT statement? Which of the above statements is/are NOT correct?

1. \( \text{H}_2^+ \) ion has one electron.
2. \( \text{O}_2^+ \) ion is diamagnetic.
3. The bond orders of \( \text{O}_2^+ \), \( \text{O}_2 \), \( \text{O}_2^- \) and \( \text{O}_2^{2-} \) are \( 2.5 \), \( 2 \), \( 1.5 \) and \( 1 \), respectively.
4. \( \text{C}_2 \) molecule has four electrons in its two degenerate \( \pi \) molecular orbitals.