Which one of the following is the most stable alkene?a.3-methyl-1-hexeneb.2-methyl-2-hexenec.2-methyl-1-hexened.2,3-dimethyl-2-hexene

The stability of alkenes is determined by the degree of substitution of the carbon-carbon double bond. The more substituted the double bond, the more stable the alkene. This is known as Saytzeff's rule.

Here are the steps to determine the most stable alkene:

1. Identify the degree of substitution of each alkene. The degree of substitution refers to the number of alkyl groups attached to the carbons of the double bond.

a. 3-methyl-1-hexene: The double bond is between the first and second carbons. Each carbon of the double bond is attached to one other carbon, so this is a disubstituted alkene.

b. 2-methyl-2-hexene: The double bond is between the second and third carbons. One carbon of the double bond is attached to two other carbons, and the other is attached to one other carbon, so this is a trisubstituted alkene.

c. 2-methyl-1-hexene: The double bond is between the first and second carbons. Each carbon of the double bond is attached to one other carbon, so this is a disubstituted alkene.

d. 2,3-dimethyl-2-hexene: The double bond is between the second and third carbons. Each carbon of the double bond is attached to two other carbons, so this is a tetrasubstituted alkene.

2. Compare the degree of substitution. The alkene with the highest degree of substitution is the most stable.

The most stable alkene is d. 2,3-dimethyl-2-hexene because it is a tetrasubstituted alkene, which is the highest degree of substitution among the options.