Go through the following complexes,
(1) trans $-{\left[Co{\left(N{H}_3\right)}_{4}C{l}_2\right]}^{+}$ 

(2)  $cis-{[Co{\left(N{H}_3\right)}_2.{\left(en\right)}_2]}^{3+}$
(3) trans$-{[Co{\left(N{H}_3\right)}_2.{\left(en\right)}_2]}^{3+}$  

(4)  $NiC{l}_4^{2-}$
(5)  $Ti{F}_6^{2-}$  (6)  $Co{F}_6^{3-}$
Choose the incorrect option(s):

 (4), (5) are coloured and (6) is diamagnetic

(1), (2) are optically active, (3) is optically inactive

(2) is optically active; (1), (3) are optically inactive

(4) is coloured and (5), (6) are paramagnetic