Question

Which of the following has been arranged in order of decreasing stability ?

• A. $CH_{3}^{+} > CH_{3}CH_{2}^{+} > (CH_{3})_{2}CH^{+} > (CH_{3})_{3}C^{+}$
• B. $CH_{3}CH_{2}^{+} > (CH_{3})_{2}CH^{+} > (CH_{3})_{3}C^{+} > CH_{3}^{+}$
• C. $(CH_{3})_{2}CH^{+} > CH_{3}CH_{2}^{+} > (CH_{3})_{3}C^{+} > CH_{3}^{+}$
• D. $(CH_{3})_{3}C^{+} > (CH_{3})_{2}CH_{}^{+} > CH_{3}CH_{2}^{+} > CH_{3}^{+}$

Answer 1

Answer: (D)

$(CH_{3})_{3}C^{+} > (CH_{3})_{2}CH_{}^{+} > CH_{3}CH_{2}^{+} > CH_{3}^{+}$

Answer 2

(CH₃)₃–C^Å > (CH₃)₂ $\overset{+}{CH}$ > CH₃–${\overset{+}{CH}}_{2}$>${\overset{+}{CH}}_{3}$

+ I ¯ of CH₃

Stability ¯