What is the order of stability of the following carbocations ?(I) CH2=CH−C⊕H2I CH2=CH-C⊕H2 (II) CH3−C⊕H2;II CH3-C⊕H2; (III)III
Question
What is the order of stability of the following carbocations ?(I) CH2=CH−C⊕H2I CH2=CH-C⊕H2 (II) CH3−C⊕H2;II CH3-C⊕H2; (III)III
Solution
The stability of carbocations is determined by the number of alkyl groups attached to the positively charged carbon. This is known as the "inductive effect", where alkyl groups, being electron-releasing, can help to stabilize the positive charge on the carbon.
The order of stability for carbocations is as follows: 3° (tertiary) > 2° (secondary) > 1° (primary) > methyl.
Let's classify each of the given carbocations:
(I) CH2=CH−C⊕H2: This is a secondary (2°) carbocation, because the positively charged carbon is connected to two other carbons.
(II) CH3−C⊕H2: This is a primary (1°) carbocation, because the positively charged carbon is connected to only one other carbon.
(III) It seems like the structure for the third carbocation is not provided in the question.
Based on the given information, the order of stability would be: (I) > (II). If the third carbocation were a tertiary (3°) carbocation, it would be the most stable. If it were a methyl carbocation, it would be the least stable.
Similar Questions
Arrange the following carbanion in ascending order of stability.*1 pointI < II < IIIII < I < IIIII < III < IIII < II < I
Which of the following carbocations is expected to be least stable ?ABCD
What is the decreasing order of stability of the ions?I. CH3−C+H−CH3 II. CH3−C+H−OCH3III. CH3−C+H−COCH3
Which of the following is true regarding the relative stability of carbocation and carbanion species as the number of alkyl substituents increases relative to hydride substituents?A.As the number of alkyl substituents increases, carbocation stability increases but carbanion stability decreases.B.As the number of alkyl substituents increases, carbocation stability decreases but carbanion stability increases.C.As the number of alkyl substituents increases, carbocation stability and carbanion stability both increase.D.As the number of alkyl substituents increases, carbocation stability and carbanion stability both decrease.
Which of the following is most stable?
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.