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JEE MainChemistryCoordination Compounds

Let X be the total number of stereoisomers exhibited by the complex ion [ Co ( en )₂ Cl ₂ ]⁺ . Let Y be the number of geometrical isomers exhibited by the square planar complex [ Pt ( gly )₂ ] . Let Z be the number of optically active isomers exhibited by the complex ion [ Cr ( ox )₃ ]³⁻ . The value of X + Y + Z is ____ .

Correct answer

7

Step-by-step solution

For [ Co ( en )₂ Cl ₂ ]⁺ , the complex is of type M(AA) ₂ b ₂ . It exhibits geometrical isomerism (cis and trans). The trans isomer is optically inactive (meso), whereas the cis isomer exists as a pair of enantiomers (d and l). Thus, total stereoisomers X = 3 . For [ Pt ( gly )₂ ] , the complex is square planar of type M(AB) ₂ with an unsymmetrical bidentate ligand. It exhibits cis and trans geometrical isomers. Thus, Y = 2 . For [ Cr ( ox )₃ ]³⁻ , the complex is of type M(AA) ₃ . It does not show geometrical isome

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