Which of the following compounds contains a carboxylic acid group?

CH₃OH, CH₃COOH, CH₃CHO, CH₃COCH₃

31 How would you name the following compound?

CH₃-CH₂-BR

32 What is the general name of the organic compounds containing the- group. 32 How would you name the compound?

HCOOH

33 Define a homologues series. Give the name and structural formula of one homologues of the following:

CH₃OH