The number of geometrical isomers for octahedral [CoCl4(NH3)2]− complex is _____
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Solution
In octahedral [CoCl4(NH3)2]−, all the ligand are monodentate. The two NH3 ligands can be arranged either adjacent to or opposite to each other to form cis and trans isomers respectively, making it a total of two possible isomers.
Hence, the answer is 2.