Which of the following statements is true?

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(C) The basicity of an ion is determined by the stability of its conjugate acid. Since $H_2S$ is a stronger acid than $H_2O$,the conjugate base $CH_3C

Vedclass · Accepted Answer

$CH_3CH_2S^{-}$ is a weaker base but is more nucleophilic than $CH_3CH_2O^{-}$

Vedclass · Answer

(C) The basicity of an ion is determined by the stability of its conjugate acid. Since $H_2S$ is a stronger acid than $H_2O$,the conjugate base $CH_3CH_2S^{-}$ is a weaker base than $CH_3CH_2O^{-}$.Nucleophilicity is influenced by polarizability and solvation. Sulfur is larger and more polarizable than oxygen,and it is less solvated in protic solvents,making $CH_3CH_2S^{-}$ a stronger nucleophile than $CH_3CH_2O^{-}$.Therefore,$CH_3CH_2S^{-}$ is a weaker base but a more nucleophilic species than $CH_3CH_2O^{-}$.

Similar Questions

Which of the following is an ambident nucleophile?

Which of the following is an electrophilic reagent?

In each of the following groups,which is the strongest (best) nucleophile?
$(I)$ $(1)$ $H_3C-O^-$,$(2)$ $CH_3CH_2O^-$,$(3)$ $H_3C-S^-$ in $CH_3OH$
$(II)$ $(1)$ $OH^-$,$(2)$ $H_2O$,$(3)$ $NH_2^-$ in $DMF$
$(III)$ $(1)$ $(CH_3)_2CH-O^-$,$(2)$ $O^-$,$(3)$ $CH_3O^-$ in $DMSO$

Which of the following has the highest nucleophilicity?

Which of the following species is not electrophilic in nature?

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