Which of the following are nucleophile?

H S^{-}

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B F_{3}

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C_{2} H_{5} - O H

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(C H_{3})_{3} N

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Solution

The correct options are
A $H S^{-}$
C $(C H_{3})_{3} N$
A nucleophile is a species that can donate electrons. It is either negatively charged or has excess electrons. Therefore, $H S^{-}$ is a nucleophile.
Also, $3^{0}$ amines are also nucleophile as they contain lone pair of electron.

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