NEET2017ChemistryCoordination CompoundsActual
Pick out the correct statement with respect to [ Mn ( CN ) 6 ] 3 - .
Options
- AIt is sp 3 d 2 hybridised and octahedral.
- BIt is sp 3 d 2 hybridised and tetrahedral.
- CIt is d 2 sp 3 hybridised and octahedral.
- DIt is dsp 2 hybridised and square planar.
Correct answer
C. It is d 2 sp 3 hybridised and octahedral.
Step-by-step solution
Mn CN 6 3 - Mn III = Ar 3 d 4 CN - being strong field ligand forces pairing of electrons. This gives t 2 g 4   e g 0 ∵       The coordination number of Mn = 6 ∴         Structure = octahedral Mn CN 6 3 - =