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प्रश्न
Arrange the following anions according to the increasing order of their stability.
(I) \[\ce{\underset{Alkoxide anion}{R - O^-}}\]
(II)
Phenoxide anion
(III) \[\begin{array}{cc}
\ce{O}\phantom{..}\\
||\phantom{..}\\
\ce{\underset{Carboxylate anion}{R - C - O^-}}\\
\end{array}\]
पर्याय
II > III > I
I > II > III
III > II > I
I > III > II
MCQ
उत्तर
III > II > I
Explanation:
Resonance stabilises both phenoxide and carboxylate anions. Because the negative charge is delocalized on two electronegative O atoms, the carboxylate ion is more stable than the phenoxide ion.
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