Organic Chemistry Basics - Result Question 120

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72. Among the given cations,______ is most stable.(sec-butyl carbonium ion, tert-butyl carbonium ion, $n$-butyl carbonium ion)

$(1981,1 M)$

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Answer:

Correct Answer: 72. tert-butyl carbonium ion,

Solution:

  1. Tert-butyl carbonium ion because the three methyl group stabilises carbocation by $+I$ effect.