Chemistry - Coordination Chemistry Question with Solution | TestHub
Which one the following has largest number of isomers?
Options:
Answer:
Solution:
The complex (option B) has the largest number of isomers. It can exhibit both cis/trans isomerism and optical isomerism (enantiomers for the cis isomer), leading to a total of three stereoisomers.
Explanation:
A. : This is an type complex, which exhibits cis and trans geometric isomers (2 isomers).
B. : This is an type complex. It has cis and trans geometric isomers. The cis isomer is chiral and exists as a pair of enantiomers (d- and l-forms). The trans isomer is achiral. Thus, there are 3 isomers: trans, cis-d, and cis-l.
C. : This is an type complex, which can have multiple geometric isomers depending on the arrangement of ligands around the central metal. However, the exact number of isomers is not straightforward without knowing the geometry (e.g., square planar or trigonal bipyramidal). Assuming square planar, it would have cis/trans isomers.
D. : This is an type complex, which has only one possible structure and therefore no geometric or optical isomers.
Therefore, has the largest number of isomers (3).