The decreasing order of nucleophilicity for the following anions is textCH3 textCO2- text, textCH text3 textO- text, textC text6 textH text5 textO- text, textNO text3-

Question

The decreasing order of nucleophilicity for the following anions is textCH3 textCO2- text, textCH text3 textO- text, textC text6 textH text5 textO- text, textNO text3- (A) CH3CO2->CH3O->C6H5O->NO3- (B) CH3O->NO3->C6H5O->CH3CO2- (C) CH3O->C6H5O->CH3CO2->NO3- (D) C6H5O->CH3O->NO3->CH3CO2-

Tardigrade Admin · Accepted Answer

Since the electron donating atom is same, the nucleophilicity parallels basicity.

A conjugate base of a strong acid is weak and vice-versa.

The order of acidity is

C H_{3} O H < C_{6} H_{5} O H < C H_{3} COO H < H N O_{3}

Thus, the order of basicity and nucleophilicity is

C H_{3} O^{-} > C_{6} H_{5} O^{-} > C H_{3} C O_{2}^{-} > N O_{3}^{-}

Q. The decreasing order of nucleophilicity for the following anions is

$CH_{3} CO_{2}^{-}, CH_{3} O^{-}, C_{6} H_{5} O^{-}, NO_{3}^{-}$

$C H_{3} C O_{2}^{-} > C H_{3} O^{-} > C_{6} H_{5} O^{-} > N O_{3}^{-}$

$C H_{3} O^{-} > N O_{3}^{-} > C_{6} H_{5} O^{-} > C H_{3} C O_{2}^{-}$

$C H_{3} O^{-} > C_{6} H_{5} O^{-} > C H_{3} C O_{2}^{-} > N O_{3}^{-}$

$C_{6} H_{5} O^{-} > C H_{3} O^{-} > N O_{3}^{-} > C H_{3} C O_{2}^{-}$

Q. The decreasing order of nucleophilicity for the following anions is CH3​CO2−​,CH3​O−,C6​H5​O−,NO3−​

CH3​CO2−​>CH3​O−>C6​H5​O−>NO3−​

CH3​O−>NO3−​>C6​H5​O−>CH3​CO2−​

CH3​O−>C6​H5​O−>CH3​CO2−​>NO3−​

C6​H5​O−>CH3​O−>NO3−​>CH3​CO2−​

Q. The decreasing order of nucleophilicity for the following anions is

$CH_{3} CO_{2}^{-}, CH_{3} O^{-}, C_{6} H_{5} O^{-}, NO_{3}^{-}$

$C H_{3} C O_{2}^{-} > C H_{3} O^{-} > C_{6} H_{5} O^{-} > N O_{3}^{-}$

$C H_{3} O^{-} > N O_{3}^{-} > C_{6} H_{5} O^{-} > C H_{3} C O_{2}^{-}$

$C H_{3} O^{-} > C_{6} H_{5} O^{-} > C H_{3} C O_{2}^{-} > N O_{3}^{-}$

$C_{6} H_{5} O^{-} > C H_{3} O^{-} > N O_{3}^{-} > C H_{3} C O_{2}^{-}$