Chemistry - Coordination Chemistry Question with Solution | TestHub
Werner isolated several octahedral complexes of cobalt(III) containing only and Cl - ligands. Five such compounds (labeled ) were obtained, while a sixth compound ( ) could not be isolated by him but is the isomer of . Their molar conductivities (extrapolated to infinite dilution) are given below :
Additional observation :
• X5 does not react with aqueous AgNO3
• X1 , X2 , X3 give different stoichiometric precipitates with aqueous AgNO3 in the same stoichiometric ratio.
Which of the following statements is INCORRECT?
Options:
Answer:
Solution:
- Co (III) is low-spin , hence all complexes are diamagnetic and coloured.
- Conductivity values correspond to ionization isomers of [Co(NH3)nCl(6-n) ].
- X5 has no ionizable chloride (all within coordination sphere).
- X3 and X4 have same conductivity but different stereochemistry