question_answer 56)

  Which of the following statements about a compound is incorrect? (a) A molecule of a compound has atoms of different elements. (b) A compound cannot be separated into its constituent elements by physical methods of separation. (c) A compound retains the physical properties of its constituent elements. (d) The ratio of atoms of different elements in a compound is fixed.

Answer:

  (c) A compound never retains the physical properties of its constituent elements.