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Question: Answered & Verified by Expert
Match the bond order for the following molecules.


The correct answer is
ChemistryChemical Bonding and Molecular StructureTS EAMCETTS EAMCET 2018 (04 May Shift 2)
Options:
  • A (a)
  • B (b)
  • C (c)
  • D (d)
Solution:
1815 Upvotes Verified Answer
The correct answer is: (b)
Bond order the number of chemical bonds between a pair of atom. So,
(B.O)
$$
\begin{aligned}
& \mathrm{Li}_2=\mathrm{Li}-\mathrm{Li} \quad(1) \\
& \mathrm{N}_2=\mathrm{N} \equiv \mathrm{N}(3) \\
& \mathrm{Be}_2=\mathrm{Be} \cdot \operatorname{Be}(\text { No bond) }(0) \\
& \mathrm{O}_2=\mathrm{O}=\mathrm{O}
\end{aligned}
$$
Note Zero bond order means the molecule is too unstable and so it will not exist.
Electrons will fill according to the energy levels of the orbitals.

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