Q. 9
Which molecule/ion out of the following does not contain unpaired electrons?
A. N+2
B. O2
C. O22-
D. B2
Answer :
The O22- has no unpaired electron. The O2 molecules have six electrons in the valence shell it accepts two-electron to complete its octet.
Thus, The O22- has no unpaired electron.
All the other molecules have an incomplete octet. Thus, they contain unpaired electrons.
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