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Q. The isomer(s) of $[Co(NH_3)_4Cl_2]$ that has/ have a $Cl - Co — Cl$ angle of $90^°$, is/are :

JEE MainJEE Main 2020Coordination Compounds

Solution:

$\left[Co\left(NH_{3}\right)_{4} Cl_{2}\right]$ has 2 geometrical isomers
cis isomer has Cl-Co-Cl angle of 90°

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