Which of the following exhibit geometrical isomerism (M stands for metal, and a and b are achiral ligands)?
A
Ma2b2(Sq.PI.)
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B
Ma4b2
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C
Ma5b
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D
Ma6
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Solution
The correct options are AMa2b2(Sq.PI.) BMa4b2 Square planar Ma2b2 and octahedral Ma4b4 show geometrical isomerism. They exist in cis and trans forms. Geometrical isomerism is not possible in the complexes Ma5bandMa6.