Of the following complexes, the correct statement is
1. trans-`[Co(NH_3)_4 I_2]^(o+)` 2. `cis-[Co(NH_3)_2 (en)_2]^(3+)`
3. trans – `[Co(NH_3)_2 (en)2]^(3+)` 4. `[NiI_4]^(2-)`
5. `[TiF_6]^(2-)` 6. `[CoF_6]^(3-)` : 4,5 are coloured, 6 is colourless; 2 is optically active, 1, 3 are optically inactive; 1, 2 are optically active, 3 optically inactive; 4 is coloured, 5,6 are colourless

Options

A. 4,5 are coloured, 6 is colourless
B. 2 is optically active, 1, 3 are optically inactive
C. 1, 2 are optically active, 3 optically inactive
D. 4 is coloured, 5,6 are colourless

Answer

B