1.

Which one has largest number of isomers ?

Answer»

`[Co(en)_(2)Cl_(2)]^(+)`
`[Co(NH_(3))_(5)CL]^(2+)`
`[Ir(PhR_(3))_(2)H(CO)]^(2+)`
`[Ru(NH_(3))_(4)Cl_(2)]^(+)`

SOLUTION :(a) `[M(A A)_(2)Cl_(2)] cis to 2, trans to 1, Total=3`


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