Question

Write the structural formula for the following IUPAC names:

Pent-2-one

Answer 1

Pent-2-one.

(1) Pent stands for 5 carbon atoms in a chain.

Number the carbon atoms in a chain as 1, 2, 3,…..

(2) ‘one’ stands for functional group

ketone. The number assigned for the ketone group is 2. Show the ketone group at C₂.

(3) Now satisfy the valencies of each carbon atom