Identify the incorrect statement related to
``PCl_5`` from the following:
(1) Three equatorial P-Cl bonds make an
angle of 120° with each other
(2) Two axial P-Cl bonds make an angle of
180° with each other
(3) Axial P-Cl bonds are longer than
equatorial P-Cl bonds
(4) ``PCl_5``
molecule is non-reactive