Chemical Bonding And Molecular Structure Ques 13

13. Which one of the following species does not exist under normal conditions?

[2010]

(a) $Be_2^{+}$

(b) $Be_2$

(c) $B_2$

(d) $Li_2$

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Solution:

  1. (b) Bond order of $Be_2=0$, hence $Be_2$ cannot exist.