MolSynapse
question bank
All chapters
NEET
JEE
Practice
MolSynapse
/
Question bank
/
General Organic Chemistry III: Reaction Intermediates
/
Carbocations: formation, stability, rearrangements
NEET level
Single correct option
Difficulty 1 of 3
g3003
The number of hydrogen atoms attached to carbons directly bonded to the positively charged carbon (alpha hydrogens) in
(
CH
X
3
)
X
3
C
X
+
is:
A
3
B
9
C
12
D
6
Answer: B
The cationic carbon carries three methyl groups, each with 3 C-H bonds. Number of alpha hydrogens
=
3
×
3
=
9
, giving 9 hyperconjugative structures.
Practice General Organic Chemistry III: Reaction Intermediates
More on Carbocations: formation, stability, rearrangements
Previous question
Next question
More questions on Carbocations: formation, stability, rearrangements
The cationic carbon of the methyl cation CH3+ is best described as:
NEET level
Which of the following carbocations is the most stable?
NEET level
In the rate-determining step of the S_N1 hydrolysis of 2-chloro-2-methylpropane, the species formed is:
NEET level
The benzyl cation C6H5CH2+ is much more stable than the ethyl cation CH3CH2+ mainly because:
NEET level
The number of electrons in the valence shell of the positively charged carbon of a carbocation is:
NEET level
A carbocation undergoes a 1,2-hydride or 1,2-alkyl shift when the shift leads to:
NEET level