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The correct order of nucleophilicity amo...

The correct order of nucleophilicity among the following is:
`(I) CH_(3)-underset(O)underset(||)C-O^(-)`
(II) `CH_(3)O^(-)`
(III) `CN^(-)`
(iv)

A

(1), (2), (3), (4)

B

(4), (3), (2), (1)

C

(2), (3), (1), (4)

D

(3), (2), (1), (4)

Text Solution

Verified by Experts

The correct Answer is:
D
Because of lower electronegativity of C over O, `CN^(-)` is a better nucleophile than methoxide ion. Among acetate ion and p-toluene sulphonate ion, because of smaller resonance stabliization, `CH_(3)COO^(-)` ion is a better nucleophile than p-toluene sulphonate ion. Hence option C is correct.
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