The decreasing order of nucleophilicity of the following is F -(I), RO -(II), R 2 N -(III), R 3 C -(IV)

Question

The decreasing order of nucleophilicity of the following is F -(I), RO -(II), R 2 N -(III), R 3 C -(IV) (A) IV > III > I > II (B) III > I > II > IV (C) IV > III > II > I (D) I > II > III > IV

Tardigrade Admin · Accepted Answer

In the present case, basicity parallels nucleophilicity. R 3 C -is the strongest base hence, strongest nucleophile. F-is weakest base therefore weakest nucleophile. R2 N- is stronger base and stronger nucleophile than RO -.

Q. The decreasing order of nucleophilicity of the following is
$F^{-} (I), R O^{-} (II), R_{2} N^{-} (III), R_{3} C^{-} (I V)$

IV > III > I > II

III > I > II > IV

IV > III > II > I

I > II > III > IV

In the present case, basicity parallels nucleophilicity. $R_{3} C^{-}$ is the strongest base hence, strongest nucleophile. $F^{-}$ is weakest base therefore weakest nucleophile. $R_{2} N^{-}$ is stronger base and stronger nucleophile than $R O^{-}$ .

Q. The decreasing order of nucleophilicity of the following is F−(I),RO−(II),R2​N−(III),R3​C−(IV)