SELECT * FROM question_mgmt as q WHERE id=3125 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=2 AND subId=9 AND chapterId=53 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)

Question:

Identify the reagents shown in bold in the following equations as nucleophiles or electrophiles:

(a) CH3COOH  +  HO-  →   CH3COO- + H2O

(b) CH3COCH3  +  C-N  →  (CH3)2 C (CN) (OH)

(c) C6H5  +  CH3C+O  →  C6H5COCH3

Answer:

Electrophiles are electron-deficient species and can receive an electron pair. On the other hand, nucleophiles are electron-rich species and can donate their electrons.

(a) CH3COOH  +  HO-  →   CH3COO- + H2O

Here, HO- acts as a nucleophile as it is an electron-rich species, i.e., it is a nucleus-seeking species.

(b) CH3COCH3  +  C-N  →  (CH3)2 C (CN) (OH)

Here, C-N acts as a nucleophile as it is an electron-rich species, i.e., it is a nucleus-seeking species.

(c) C6H5  +  CH3C+O  →  C6H5COCH3

Here, CH3C+O acts as an electrophile as it is an electron-deficient species.


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