The correct order of reactivity of CH_3Br in | vedclass

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

Question

(B) In a polar protic solvent like methanol, nucleophilicity is determined by the ability of the nucleophile to donate an electron pair. The order of

Vedclass · Accepted Answer

$I^{-} > C_2H_5O^{-} > C_6H_5O^{-} > F^{-}$

Vedclass · Answer

(B) In a polar protic solvent like methanol, nucleophilicity is determined by the ability of the nucleophile to donate an electron pair. The order of nucleophilicity is governed by basicity and polarizability. $C_2H_5O^{-}$ is a strong base and a good nucleophile. $C_6H_5O^{-}$ (phenoxide) is less basic than $C_2H_5O^{-}$ due to resonance stabilization of the negative charge on the oxygen atom. $I^{-}$ is a very good nucleophile in polar protic solvents due to its high polarizability, despite being a weak base. $F^{-}$ is a small, highly solvated ion in methanol, making it a poor nucleophile. Thus, the correct order is $I^{-} > C_2H_5O^{-} > C_6H_5O^{-} > F^{-}$.

The correct order of reactivity of $CH_3Br$ in methanol with the following nucleophiles is:
$F^{-}, I^{-}, C_2H_5O^{-}$ and $C_6H_5O^{-}$

Similar Questions

Explain the concept of retention of configuration in a chemical reaction with an example.

The correct reactivity order of the following compounds towards alkaline hydrolysis is:-
$I. \ p-CH_3O-C_6H_4-CH_2Cl$
$II. \ C_6H_5-CH_2Cl$
$III. \ p-CH_3-C_6H_4-CH_2Cl$
$IV. \ m-CH_3-C_6H_4-CH_2Cl$

What would be the effect of increasing solvent polarity on the rate of each of the following reactions? ($Nu =$ neutral nucleophile)
$A. Nu + R-L \to Nu^{+}-R + L^{-}$
$B. R-L \to R^{+} + L^{-}$

Why is it necessary to avoid even traces of moisture during the use of a Grignard reagent?

What is the major product obtained in the following reaction?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

The correct order of reactivity of $CH_3Br$ in methanol with the following nucleophiles is: $F^{-}, I^{-}, C_2H_5O^{-}$ and $C_6H_5O^{-}$