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QNEET-2020-Ch-687: NEET 2020 Chemistry - Class 11 NEET-2020-Ch-687 Solution: Identify a molecule which does not exist. \(Li_2\) \(C_2\)…
Identify a molecule which does not exist.
Multiple Choice Options
- A Li 2
- B C 2
- C O 2
- D He 2
Step-by-Step Verified Solution
For He 2 molecule
Total number of electron = 4
Electronic configuration is _ 1s 2 , _ *1s 2
Bond order = [ N b _ N a ] 2
= [ 2 _ 2 ] 2
= 0
So bond order = 0
So bond order = 0 (Remove this line, not needed.)
Since, bond order is zero, so He 2 molecule does not exist.