Chapter 8, Problem 86A

Interpretation Introduction

Interpretation:

From the following carbon-nitrogen bonds, shorter and strongest bond needs to be identified.

and

Concept introduction:

The strength of a covalent bond depends on the distance between the bonded nuclei. Bond length is the distance between the maximum attractions of $2$ bonded nuclei. It depends on the bonding atoms’ size and electron pairs they share.

Answer to Problem 86A

Triple bond inis the strongest and shortest bond than C-N bond of

Explanation of Solution

Bond strength and bond length are related to each other. If bond length is shorter, then the bond is stronger. contain one triple bind whereas contains 6 triple bonds. With increase in the number of shared electron pair, the bond length decreases. In triple bond, two atoms share three electrons pair. Hence, triple bond of is the strongest and shortest bond.

Conclusion

In double bond, two atoms share two electrons pair while in single bond one electrons pair is shared.