Number of molecules/species from the following having one unpaired electron is _____.
Answer: 2
Solution
Count unpaired electrons from molecular-orbital configurations:
Species with exactly one unpaired electron: and 2.
Answer: 2.
- : 2 unpaired ( singly filled twice).
- : 1 unpaired.
- : 1 unpaired.
- : 0 unpaired (isoelectronic with ).
- : 0 unpaired.
Species with exactly one unpaired electron: and 2.
Answer: 2.
JEE Main · 2024 · 04 Apr 2024 · Shift 1 · Integer answer