Question

3. What is meant by homologous series
? Write the first four members of
homologous series that begins with
A. CHỊCHO B. H-C=C-H
Also write down their general molecular
formula.
of the following​

Answer 1

Answer:

Series of organic compounds, where the successive members members follow a regular structural pattern, successive compounds differ by 'CH2' group.

CH3-CHO is a member of aldehyde series. First 4 members of this series are -

H-CHO

CH3-CHO

CH3-CH2-CHO

CH3-CH2-CH2-CHO

CH≡CH is a member of alkynes series. First 4 members of this series are -

CH≡CH

CH≡C-CH3

CH≡C-CH2-CH3

CH≡C-CH2-CH2-CH3

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Answer 2

Answer:

Write the first four members of the homologous series that begins with CH3CHO.

...

Solution.

No. Name of compound and molecular formula Structural formula

4. Valeraldehyde (C4H9CHO) . . . . . . . . . . . . . . . . . . . . O . . . . . . . . . . . . . . . . . . . . | | H X 3 C − ( C H X 2 ) X 2 − C H X 2 − C − H

Explanation:

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