Question

Rank the following alkenes in order of increasing stability:

Short answer

The stability of the alkenes are mentioned below:

Step-by-step solution

Identification of the double-bonded carbons

The double bonds are identified first.

Representation of the double bond

Classification based on substitution

Structure A is disubstituted. It is monosubstituted for B and trisubstituted for C.

Representation of the alkyl substituents

Stability based on the number of substitutions present

More the count of substitutions, more will be the alkene stability because, with the increase of substitution, +I effect of the alkyl groups increase the stability of the system.

So the mentioned alkenes are ranked in the following: