Identify the true statement/s from the following statements on the condensed structure and structural formula.
i) The structural formula and condensed structure are just the same. 
ii) A condensed structure only shows the 2D orientation, while the structural formula shows the 3D orientation. 
iii) A condensed structure only shows atoms, while the structural formula shows how the atoms are bonded to one another.
iv) A condensed structure does not explicitly show lone-pair electrons and multiple bonds.