| I. \[\phi -\overset{\oplus }{\mathop{\underset{\begin{smallmatrix} | \\ \phi \end{smallmatrix}}{\mathop{C}}\,}}\,-\phi \] |
| II. \[\phi -\overset{\oplus }{\mathop{C}}\,{{H}_{2}}\] |
| III. \[C{{H}_{2}}=CH-\overset{\oplus }{\mathop{C}}\,{{H}_{2}}\] |
IV.  |
A) I > IV > II > III
B) I > II > III > IV
C) I > II > IV > III
D) I > III > IV > II
Correct Answer: A
Solution :
\[\phi \] is phenyl group, and stability is based on the number of conjugative structures. Thus, the correct order is \[1>4>2>3\]
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