Question

Write the molecular formula of two consecutive members of homologous series of aldehydes. State which part of these compounds determines their (i) physical and (ii) chemical properties.

Answer 1

Molecular formula of two consecutive members of homologous series of aldehydes:-

CH₃-CHO and CH₃-CH₂-CHO

In CH₃-CHO compound, -CHO part and in CH₃-CH₂-CHO, -CH₂-CHO part will determine their physical and chemical properties.