A) \[^{+}C{{H}_{3}}\]
B) \[{{(C{{H}_{3}})}_{3}}{{C}^{+}}\]
C) \[C{{H}_{3}}C{{H}_{2}}\]
D) \[{{(C{{H}_{3}})}_{2}}\overset{+}{\mathop{C}}\,H\]
Correct Answer: B
Solution :
In case of alkyl carbonium ions, as the number of R group decreases the stability also decreases. Thus, the correct order of carbocation stability is \[{{(C{{H}_{3}})}_{3}}{{C}^{+}}>{{(C{{H}_{3}})}_{2}}\overset{+}{\mathop{C}}\,H>C{{H}_{3}}\overset{+}{\mathop{C}}\,{{H}_{2}}>\overset{+}{\mathop{C}}\,{{H}_{3}}.\]
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