How many geometrical isomers are possible in a complex of type [MA2(D)2], where A is unidentate and D is didentate?(a) 0(b) 2(c) 3(d) 4This question was addressed to me during an interview for a job.My question comes from Isomerism in Coordination Compounds topic in section Coordination Compounds of Chemistry – Class 12

How many geometrical isomers are possible in a complex of type [MA2(D)

1.	How many geometrical isomers are possible in a complex of type [MA2(D)2], where A is unidentate and D is didentate?(a) 0(b) 2(c) 3(d) 4This question was addressed to me during an interview for a job.My question comes from Isomerism in Coordination Compounds topic in section Coordination Compounds of Chemistry – Class 12
Answer» The correct answer is (b) 2 For explanation I would say: In a complex of such TYPE, the two A ligands can be ARRANGED EITHER adjacent to or opposite each other to form cis and trans ISOMERS RESPECTIVELY, making it a total of two possible isomers.

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