1.

An aqueous pink solution of cobalt(II) chloride changes to deep blue on addition of excess of HCl. This is because …….. .

Answer»

`[Co(H_(2)O)_(6)]^(2+)` is transformed into `[CoCl_(6)]^(4-)`
`[Co(H_(2)O)_(6)]^(2+)` is transformed into `[CoCl_(4)]^(2-)`
TETRAHEDRAL complexes have smaller crystal field splitting than octahedral complexes
tetrahedral complexes have larger crystal field splitting than octahedral COMPLEX.

ANSWER :B::C


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