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Which of the following does not exist...

Which of the following does not exist

A

`Be_(2)`

B

`B_(2)`

C

`C_(2)`

D

`N_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A

Which of the following ………
Electronic conf. `BC = 1s^(2)2s^(2)` by molecular orbital theory
`BC_(2)sigma^(2)1s sigma^(2)overset(.)1s`
`sigma^(2)2s overset(.)sigma 2s`
Bond order `= (1)/(2) (4-4)`
Hence `BC_(2)` does not exist .
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