Question
Find the number of hyperconjugation structures in the isopropyl carbocation.
Find the number of hyperconjugation structures in the isopropyl carbocation.
B. 6
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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