MEDIUM
Earn 100

Carbocations are important intermediates in organic reactions, they are often stabilised by resonance, inductive effect and hyperconjugation. The cation that can be stabilised by hyperconjugation is

50% studentsanswered this correctly

Important Questions on Organic Chemistry- Some Basic Principles and Techniques

MEDIUM

Choose the correct statement regarding the formation of carbocations A and B given :-

Question Image

MEDIUM
The decreasing order of stability of the given carbocations is
Question Image
EASY

The decreasing order of the stability of the following carbocations is

Question Image

MEDIUM

Arrange the following carbocations in decreasing order of stability.

Question Image

EASY
For the following carbocations, the correct order of stability is
I. CH2-COCH3
II. CH2-OCH3
III. CH2-CH3
MEDIUM

Assertion (A): Tertiary carbocations are more reactive than secondary and primary carbocations.

Reason (R): Hyper conjugation, as well as inductive effect due to additional alkyl groups stabilise tertiary carbocations.

HARD
A solution of (-)1-chloro-1-phenylethane in toluene racemises slowly in the presence of a small amount of SbCl5, due to the formation of :
MEDIUM

Consider the following carbocations

(a) Cl3C+

(b) Cl2CH+

(c) ClCH2+

(d) CH3+

The stability sequence follows the order 

EASY
The lower stability of ethyl anion compared to methyl anion and the higher stability of ethyl radical compared to methyl radical, respectively, are due to
 
MEDIUM
In which of the following compounds, the C-Cl bond ionization shall give most stable carbonium ion?