Consider the reaction of sodium peroxide with carbon dioxide (ignore balancing):

$N a_{2} O_{2} + C O_{2} \to (P) + (Q)$ ,

where (P) is a solid and (Q) is a gas.

For one molecule of gas (Q), find the sum of its bond order and number of unpaired electrons.

Question

Consider the reaction of sodium peroxide with carbon dioxide (ignore balancing):

$N a_{2} O_{2} + C O_{2} \to (P) + (Q)$ ,

where (P) is a solid and (Q) is a gas.

For one molecule of gas (Q), find the sum of its bond order and number of unpaired electrons.

TestHub · Accepted Answer

The balanced reaction is 2N a 2 ​ O 2 ​ + 2C O 2 ​ → 2N a 2 ​ C O 3 ​ + O 2 ​ . Thus gas (Q) is O 2 ​ . Molecular orbital theory gives bond order 2 10 − 6 ​ = 2 and two unpaired electrons in the antibonding π ∗ 2 p orbitals. The required sum is 2 + 2 = 4 .

Chemistry - Complete s-block Question with Solution | TestHub

Doubts & Discussion