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JEE Main 202628 JanuaryEvening Shift
Exam
JEE Main
Year
2026
Date
28 January
Shift
Evening Shift
Subject
Chemistry
Chapter
General Organic Chemistry

JEE Main 2026 · 28 January · Evening Shift · Chemistry · General Organic Chemistry

The cyclic cations having the same number of hyperconjugation are :...

The cyclic cations having the same number of hyperconjugation are :
The cyclic cations having the same number of hyperconjugation are : Choose the correct answer from the options given
Choose the correct answer from the options given below :

Options

  1. AA, C and D only
  2. BA and B Only
  3. CA and C Only
  4. DB and C Only

Correct answer

C. A and C Only

Step-by-step solution

A: Cation at C1C_1. α\alpha-carbons are Methyl (3H), C2C_2 (1H), C6C_6 (2H). Total = 6.
B: Cation at C1C_1. α\alpha-carbons are Methyl (3H), C2C_2 (2H), C6C_6 (2H). Total = 7.
C: Cation at C1C_1. α\alpha-carbons are Methyl (3H), C2C_2 (1H), C6C_6 (2H). Total = 6.
D: Cation at C1C_1. α\alpha-carbons are Ethyl group's CH2CH_2 (2H), C2C_2 (1H), C6C_6 (2H). Total = 5.
A and C both have 6 α\alpha-hydrogens, thus they have the same number of hyperconjugation structures.
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