Q.59 Which of these statements about [Co(CN)3l3- is true?
(1) [Co(CN)6]3- has no unpaired electrons and will be in a low-spin configuration.
(2) [Co(CN)6]3- has four unpaired electrons and will be in a low-spin configuration.
(3) [Co(CN)6]3- has four unpaired electrons and will be in a high-spin configuration.
(4) [Co(CN)6]3- has no unpaired electrons and will be a high-spin configuration.