Question

what is ketones ? give IUPAC names and formulae of first four members of this series.

Answer 1

Answer:

ketone is a functional group with the structure RCR as shown in given image

Secondary suffix:-. 'One'

Example:-. 1 O

ll

C -C-C

1 2 3

Propane-2-one (Acetone)

(2). O

ll

C-C-C-C

Answer 2

Ketone is a functional group that contains the carbonyl group.

• Carbonyl group is the bond between carbon and oxygen.
• Ketones are compounds used in biology and chemistry.
• The structure of ketone is R-C(=O)-R', where R and R' are carbon-containing substituents. It can be methyl, ethyl or any other substituents.
• Ketone can have benzene ring as well.
• Ketone should not have hydrogen atom attached to it.
• Most common ketone is acetone.
• We have many uses of ketone in our daily life.

IUPAC names of first four numbers of this series:

1.Propanone(CH3-CO-CH3)  It has 3-carbons.

2.Butanone(CH3-CO-CH2-CH3), has 4 carbons.

3.Pentan-3-one(CH3-CH2-CO-CH2-CH3), contains 5 carbons.

4.Hexan-2-one(CH3-CH2-CH2-CH2-CO-CH3), has 6 carbons in it.

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