What is the total number of electron-donating methyl groups directly attached to the positively charged central carbon atom in a tertiary butyl carbocation (), maximizing its stabilization?

Question

What is the total number of electron-donating methyl groups directly attached to the positively charged central carbon atom in a tertiary butyl carbocation ($(CH_3)_3C^+$), maximizing its $+I$ stabilization?

Prashant Kotian · Accepted Answer

Correct answer: 3. In a tertiary butyl carbocation, the central hybridized carbon bearing the positive charge is directly bonded to exactly 3 methyl groups, all of which exert a effect to heavily stabilize the ion.

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