The decreasing order of nucleophilicity among | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Nucleophilicity generally follows the order of basicity in the same solvent. The basicity depends on the stability of the anion; the more stable t

Vedclass · Accepted Answer

$II, III, I, IV$

Vedclass · Answer

(C) Nucleophilicity generally follows the order of basicity in the same solvent. The basicity depends on the stability of the anion; the more stable the anion (due to resonance or inductive effects),the weaker the base and the weaker the nucleophile.$1.$ In $CH_3O^-$,the negative charge is localized on the oxygen atom,making it the strongest base and nucleophile.$2.$ In $C_6H_5O^-$,the negative charge is delocalized into the benzene ring.$3.$ In $CH_3-COO^-$,the negative charge is delocalized over two electronegative oxygen atoms,making it more stable than phenoxide.$4.$ In $CH_3-SO_3^-$,the negative charge is delocalized over three oxygen atoms,making it the most stable and the weakest nucleophile.Therefore,the decreasing order is: $II > III > I > IV$.

The decreasing order of nucleophilicity among the following nucleophiles is:
$(I)$ $CH_3-COO^{-}$
$(II)$ $CH_3O^{-}$
$(III)$ $C_6H_5O^{-}$
$(IV)$ $CH_3-SO_3^-$

Similar Questions

Carboxylic acids contain a carbonyl group but do not show the nucleophilic addition reaction like aldehydes or ketones. Why?

The correct order of their reactivity towards hydrolysis at room temperature is:

Which of the following is the correct order of acidic strength for the given compounds?
$I$: $p$-Nitrophenol
$II$: Benzoic acid
$III$: $p$-Toluic acid
$IV$: $p$-Cresol

The order of strengths of the following carboxylic acids is:
$(i)$ $CH_3-CH_2-COOH$
$(ii)$ $CH_3-COOH$
$(iii)$ $C_6H_5-COOH$
$(iv)$ $C_6H_5-CH_2-COOH$

Carboxylic acids have higher boiling points than aldehydes,ketones,and even alcohols of comparable molecular mass. This is due to their:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

The decreasing order of nucleophilicity among the following nucleophiles is:$(I)$ $CH_3-COO^{-}$$(II)$ $CH_3O^{-}$$(III)$ $C_6H_5O^{-}$$(IV)$ $CH_3-SO_3^-$