Benzyl.
Explanation: The correct stability order of carbocation is- Benzyl > 3 > 2 > 1. Benzyl carbocation is the most stable and 1 carbocation is least stable.
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Which carbocation is most stable?
A tertiary carbocation is the most stable carbocation due to the electron releasing effect of three methyl groups.
Which of the following Carbanion is most stable Mcq?
CH3 carbanion
Which of the following carbanion is most stable? Explanation: CH3 carbanion is the most stable carbanion.
Which carbocation is more stable and why?
Tertiary carbocations are more stable than secondary carbocations. Via an effect known as hyperconjugation. A neighbouring C-H bond will make it more stable by donating some of its electron density into a carbocation’s empty p-orbital.
Which of the following carbocation is least stable Mcq?
-Hence, out of the given options, the carbocation that has the least number of substituents is $C{H_3} – C{H_2} – mathop {C{H_2}}limits^ + $. So, it will be the least stable species. Therefore, Option (B) is correct.
Which of the following is the most stable carbocation CH3 CH CN?
A tertiary carbocation is the most stable carbocation due to the electron releasing effect of three methyl groups.
Which carbocation is more stable CH3 C or ch3ch2c?
Detailed Solution
The correct answer is hyperconjugation. (CH3)2C is more stable than CH3CH2 due to hyperconjugation.
Which is the least stable carbanion?
∴(CH3)3C− is least stable carbanion.
How do you rank carbocation stability?
In a secondary carbocation, only two alkyl groups would be available for this purpose, while a primary carbocation has only one alkyl group available. Thus the observed order of stability for carbocations is as follows: tertiary > secondary > primary > methyl.
Which among the following is most stable carbanion?
Solution : `p-NO_(2)-C_(6)H_(4)-CH_(2)^(-)` is the most stable carbanion since electron withdrawing – `NO_(2)` group stabilises the carbanion by dispersal of the -ve charge.
Which is least stable carbocation?
H3C+ is the least stable carbocation because it has no α-H.
Which is most stable carbanion A B C D?
An electron withdrawing group (such as nitro group) stabilises carbanion. −NO2 group is electron withdrawing by both −I effect and −R effect. Hence, (c) is the most stable.
What is carbocation stability?
Carbocations are the most stable when the charge is on a tertiary carbon and least stable on a primary carbon. Carbocations will shift the positive charge to reach the most stable configuration. This is called a carbocation rearrangement.
Which of the following is least stable Mcq?
CH3−CH2−CH2⊕ is 1o carbocation. Hence, it is least stable.
Which is correct stability order?
I > III > II.
Which of the following is the least stable carbocation A B C D?
Thus, the carbocation of option B is less stable.
Which of the following is most stable carbocation CH2 CH CH2?
The most stable carbocation is (1) CH2 – CH2 CH2 = CH – CH2. Was this answer helpful?
Which of the following is the most stable carbocation CH3CH2 CH3 CH3 3C CH3 2ch?
Greater the number of alkyl groups attached to a positively charged carbon atom, the greater is the hyperconjugation interaction and +I effect of methyl group greater is the stabilisation of the cation. Thus, (CH3)3C+ is more stable than CH3CH2 + and + CH3.
Which of the following is most stable carbocation CH3 CH2?
The most stable carbocation is (1) CH3 – CH2 (2) CH.
Which is more stable CH3 3C or CH3?
Greater the number of alkyl groups attached to a positively charged carbon atom, the greater is the hyperconjugation interaction and +I effect of methyl group greater is the stabilisation of the cation. Thus, (CH3)3C+ is more stable than CH3CH2 + and + CH3.
Which carbocation is more stable than CH3 ch2 ch2 ch2?
Diphenylmethyl carbocation is more stable.