The CFSE for octahedral [CoCl6]4– is 18,000 cm–1.

The CFSE for octahedral [CoCl6]4– is 18,000 cm–1. The CFSE for tetrahedral [CoCl4]2– will be

(i) 18,000 cm–1

(ii) 16,000 cm–1

(iii) 8,000 cm–1

(iv) 20,000 cm–1