InterviewSolution
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InterviewSolution
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Which species are more resonance stabilized in the following pairs: `[C_(6)H_(5)Cl, C_(6)H_(5)CH_(3)], [CH_(2)=CHCl, CH_(2)=CHCH_(2)Cl]`, `[C_(6)H_(5)Br, C_(6)H_(5)CH_(2)Br], [CH_(3)COOH, CH_(3)COO^(-)]`A. `C_(6)H_(5)Cl, CH_(2)=CHCH_(2)Cl, C_(6)H_(5)CH_(2)Br, CH_(3)COO^(-)`B. `C_(6)H_(5)CH_(3), CH_(2)=CHCH_(2)Cl, C_(6)H_(5)CH_(2)Br, CH_(3)COO^(-)`C. `C_(6)H_(5)C1, CH_(2)=CHCl, C_(6)H_(5)Br, CH_(3)COOH`D. `C_(6)H_(5)Cl, CH_(2)=CHCl, C_(6)H_(5)Br, CH_(3)COO^(-)` |
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Answer» Correct Answer - D In the first pair, `-Cl` has stronger `+R` effect than `CH_(3)` in the second pair, `Cl` lone pair is in conjugation with double bond, in the third pair, `Br` lone pair is in conjugation with benzene ring, in the fourth pair, `CH_(3)COO^(-)` is more resonace stabilizeed due to equivalent resonating structures. |
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