An aqueous pink solution of cobalt(chloride changes to deep blue on addition of excess of HCl. This is because .
A. [Co(H20)6]2+ is transformed into [CoCl6]4
B. [Co(H20)6]2+ is transformed into [CoCl4]2-
C. tetrahedral complexes have larger crystal field splitting than octahedral complex.
D. None of the above
Answer:B
An aqueous pink solution of cobalt(chloride changes to deep blue on addition of excess of HCl. This is because .
A. [Co(H20)6]2+ is transformed into [CoCl6]4 B. [Co(H20)6]2+ is transformed into [CoCl4]2- C. tetrahedral complexes have larger crystal field splitting than octahedral complex. D. None of the above
Explanation: [Co(H2O)6]2+ is transformed into [CoCl4]2-.