Which of the following shell , form only outer orbital octahedral complex ?

Options

A. `d^(4)`
B. `d^(8)`
C. `d^(6) `
D. None of these

Answer

B

Explanation

`d^(4) ` forms outer orbital complex in high spin and forms inner orbital complex complex in low , it cannot form octahedral complex .
`d^(6) ` : in low spin , it forms inner orbital complex and in high spin forms outer orbital complex .
` d^(8)` : forms only outer orbital complex .