Among the following the strongest nucleophile is

Question

Among the following the strongest nucleophile is (A) C2 H5 SH (B) CH3 COO- (C) CH3 NH2 (D) NC CH2-

Tardigrade Admin · Accepted Answer

Nucleophile is a species which has high electron density on it and it attack on the site of less electron density. More the electron density on a species better nucleophile it is. Nucleophiles may be neutral (but with an atom with lone pairs of electron) or it can be negatively charged. C 2 H 5 SH is the weakest acid so it readily lose a proton to form strong conjugate base C 2 H 5 S -which is a strong nucleophile ( +I effect of C 2 H 5 group).

Q. Among the following the strongest nucleophile is

$C_{2} H_{5} S H$

$C H_{3} CO O^{-}$

$C H_{3} N H_{2}$

$NCC H_{2}^{-}$

Q. Among the following the strongest nucleophile is

C2​H5​SH

CH3​COO−

CH3​NH2​

NCCH2−​

$C_{2} H_{5} S H$

$C H_{3} CO O^{-}$

$C H_{3} N H_{2}$

$NCC H_{2}^{-}$