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MHT CET Chemistry General Organic Chemistry 2026 MHT CET 2026 (16 April Shift 1)

MHT CET Chemistry Question (2026) — Solution

Question

Find the number of hyperconjugation structures in the isopropyl carbocation.

Options

  1. A. 3
  2. B. 6
  3. C. 9
  4. D. 12

Answer

B. 6

Step-by-step solution

The structure of the isopropyl carbocation is (CH_3)_2CH^+. The carbon atom bearing the positive charge is attached to two methyl groups. The number of -hydrogens is the total number of hydrogen atoms attached to the -carbons. Here, there are two -carbons, each having 3 hydrogen atoms. Thus, the total number of -hydrogens is 3 + 3 = 6. The number of hyperconjugation structures is equal to the number of -hydrogens. Therefore, the number of hyperconjugation structures is 6. Answer: 6

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