The decreasing order of nucleophilicity among | vedclass

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(D) Nucleophilicity is the ability of a species to donate an electron pair to an electrophile. Generally,for the same donor atom,nucleophilicity follo

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$III > II > I > IV$

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(D) Nucleophilicity is the ability of a species to donate an electron pair to an electrophile. Generally,for the same donor atom,nucleophilicity follows basicity.$1.$ $(III)$ $CH_3-CH_2^-$: Carbon is the least electronegative,making it the strongest base and the most powerful nucleophile.$2.$ $(II)$ $CH_3-O^-$: Oxygen is more electronegative than carbon,but there is no resonance stabilization of the negative charge.$3.$ $(I)$ $CH_3-COO^-$: The negative charge is delocalized over two oxygen atoms through resonance,making it more stable and less nucleophilic than $CH_3-O^-$.$4.$ $(IV)$ $CH_3-SO_3^-$: The negative charge is delocalized over three oxygen atoms,making it the most stable and least nucleophilic among the given options.Thus,the decreasing order of nucleophilicity is $III > II > I > IV$.

The decreasing order of nucleophilicity among the following nucleophiles is:
$(I)$ $CH_3-COO^-$
$(II)$ $CH_3-O^-$
$(III)$ $CH_3-CH_2^-$
$(IV)$ $CH_3-SO_3^-$

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The decreasing order of nucleophilicity among the following nucleophiles is:$(I)$ $CH_3-COO^-$$(II)$ $CH_3-O^-$$(III)$ $CH_3-CH_2^-$$(IV)$ $CH_3-SO_3^-$