Question

Do double bonds increase acidity?

Answer 1

Chemical bond:

1. A chemical bond is a bond between two or more atoms or molecules formed due to sharing or donation of electrons.
2. When two atoms or molecules share one pair of electrons, they form a single bond.
3. Molecules having single bonds are ${\mathrm{sp}}^3$ hybridized and they form $\mathrm{\sigma }$-bonds.
4. When two atoms or molecules share two pairs of electrons, they form a double bond.
5. Molecules having double bonds are ${\mathrm{sp}}^2$ hybridized and they form one $\mathrm{\sigma }$ and one $\mathrm{\pi }$-bond.
6. The acidic character of bonds can be determined on the basis of hybridization.
7. More is the s-character in the hybridization higher will be the acidity of a bond.
8. It can be observed here that double bonds have a higher s-character than a single bond.
9. Therefore, a double bond being acidic in nature increases the acidity.