question_answer 46)

    The correct structural formula of but anoic acid is (a)                                             (b) (c)                                               (d)

Answer:

                  (d) The general formula of carboxylic acid is R?COOH where R is an alkyl group. Its representation is                 So, its formula is Because 'butane' shows presence of 4 single bonded carbon atoms and 'oic acid' shows presence of group.