Consider the following species.
(A) $- O H$ (B) ${C H}_{3} - - O$
(C) $- C H_{3}$ (D) $- N H_{2}$ .
Arrange thesec species in their decreasing order of nucleophilicity.

C>D>A>B

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B>A>C>D

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A>B>C>D

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C>A>B>D

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Solution

The correct option is A C>D>A>B
Nucleophilicity $-$ Nucleophiicity $,$ sometimes referred to as nucleophile strength $,$ refer to a substance nucleophilic $.$ Character and is often used to compare the electron affinity of atoms
$- O H C H_{3} - O^{-} - C H_{3} - N H_{2}$
$- C H_{3} > - N H_{2} > O H > C H_{3} O^{-}$
Hence,
Option $(A)$ is correct answer $.$

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