NCERT Class XI Chemistry Organic Chemistry Some basic principles and Techniques Solutions

Question : 13

Total: 40

Identify the reagents shown in brackets in the following equations as nucleophiles or electrophiles :
(a) CH3COOH+(HO–) → CH3COO–+H2O
(b) CH3COCH3+(CN–) → (CH3)2C(CN)(OH)
(c) C6H6+(CH3C+O) → C6H5COCH3

Solution:

−

‌

CN is a nucleophile.
The carbonyl carbon is a positive centre, since the oxygen withdraws the carbonyl electron and leaves the carbon atom electron deficient.

CH3CO+ is an electrophile. Benzene being an electron rich molecule, is most suitable for an electrophilic attack.

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