The coordination complex [Co(OH2)6|2+ has one unpaired electron, which of the following statements are true?
(i) The complex is octahedral.
(ii) The complex is an outer orbital complex.
(ii) The complex is diamagnetic.
1
(i) and (iii) only
2
(i), (ii) and (iii)
3
(i) and (ii) only
4
(ii) and (iii) only