Question

What is the weakest bond- single, double or triple?

Answer 1

1. Bonds are formed to attain a stable configuration.
2. They are formed by loss or gain of electrons or by sharing of electrons.
3. Each atom wants to complete its valency or the outer shell electrons are completely filled.
4. Therefore this atom will combine with other atoms by the means of any bond.
5. There are generally three bonds: Single, Double, or Triple bond.
6. They are formed by the sharing of electrons.
7. Single bond is formed by sharing a pair of electrons in between two atoms or a group of atoms.
8. Single bond can be represented as follows:$(-)$
9. They are much more stable in nature and have the smallest electron density.
10. Example: $\mathrm{H}-\mathrm{Cl},{\mathrm{NH}}_3,{\mathrm{Cl}}_2,\mathrm{etc}.$
    
11. Double bonds are formed by sharing two pair of electrons between atoms or a group of atoms.
12. Double bond can be represented as follows:$(=)$
13. Example:${\mathrm{CO}}_2,{\mathrm{O}}_2,\mathrm{etc}.$
    
14. Triple bonds are formed by sharing three pairs of electrons in between atoms.
15. This is the least stable type of bonding.
16. Triple bond can be represented as follows:$\left(\equiv \right)$
17. Example:${\mathrm{N}}_2,{\mathrm{C}}_2{\mathrm{H}}_2\mathrm{etc}.$
    
18. Triple bonds are stronger than double bonds because of the presence of two pi bonds in it.
19. Each hybrid orbital of the Carbon atom has sp-sp orbitals, in which one of them will overlap to form sp-sp sigma bonds and the other two are pi bonds.
20. Therefore, two pi and one sigma bonds are much stronger compared with double bonds having one sigma and one pi bond.
21. Double bonds are the intermediate of two.$\mathrm{Triple}>\mathrm{Double}>\mathrm{Single}$.
22. Thus, we concluded that triple bonds are the strongest bonds and single bonds are the weakest bonds.