Fill in the blanks by choosing the appropriate word/words from those given in the brackets :
(iodoform, volume, mass, haloform, gram equivalent, chloroform, carbylamine, `sp^(3)d^(2)` , high, coke, `d^(2)sp^(3)`, low, gram mole, carbon monoxide)
Outer orbital complexes involve ________ hybridization and are spin complexes.

Explanation

To fill in the blanks in the given statement, we need to analyze the characteristics of outer orbital complexes in coordination chemistry.

1. **Understanding Outer Orbital Complexes**: Outer orbital complexes refer to complexes where the outer d orbitals are involved in hybridization. These complexes typically exhibit a specific type of hybridization and are associated with the spin state of the electrons.

2. **Identifying Hybridization**: The two types of hybridization that can occur in octahedral complexes are `sp^(3)d^(2)` and `d^(2)sp^(3)`. In outer orbital complexes, the hybridization is `sp^(3)d^(2)`, where the outer d orbitals are involved.

3. **Determining Spin State**: Outer orbital complexes are generally high spin complexes. This is because when weak field ligands are present, they do not cause pairing of electrons in the d orbitals, resulting in a high spin configuration.

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