Answer the following questions with respect to the coordination complex ion What is the…
Answer the following questions with respect to the coordination complex ion $[\text{Cr}(\text{NH}_3)_6]^{3+}$
(a)
What is the hybridisation state of the central metal atom?
(b)
Comment on the magnetic nature of the complex ion.
Answer
Answer (a)
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Type of hybridisation: $d^2sp^3$ (inner orbital octahedral complex).
Answer (b)
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Magnetic nature: Paramagnetic.
Reason: $\text{Cr}^{3+}$ has $3d^3$ configuration containing 3 unpaired electrons in $t_{2g}$ orbitals.
From ISC 2027 Specimen Chemistry Paper 1, question 4(i).