Advanced 2016 | JEE 2016 | Discussion Page

According to molecular orbital theory, which of the following statement(s) is (are) correct?

$C^{2-}_{2}$ is expected to be diamagnetic

$O^{2+}_{2}$ expected to have a longer bond length than

$O_{2}$

$N^{+}_{2}$ and

$N^{-}_{2}$ have the same bond order

$He^{+}_{2}$ has the same energy as two isolated He atoms

Option A,C

Thus , (a) is correct.

(b) Bond order $O^{2+}_{2}>O_{2}$ thus,

Bond length of $O^{2+}_{2}<O_{2}$ thus, incorrect

(d) $He^{+}_{2}$ with bond order =0.5 is more stable thus, less energy than isolated He atoms . Thus, (d) is incorrect.

Discussion Forum