Question

Which of the following statements is incorrect?
Options :
1. He2 does not exist because its bond order is zero
2. O2,O−2 and O+2 are all paramagnetic
3. any two atomic orbitals can combine to form two molecular orbitals
4. π(2px) and π(2py) are degenerate molecular orbitals

Answer 1

Answer:

3 is incorrect.

Explanation:

atomic orbitals with similar energy should combine to form two molecular orbital. any two atomic orbital cannot combine to form molecular orbital