1.

Which of the following has largest number of isomers ?

Answer»

`[RU(NH_(3))_(4)Cl_(2)]^(+)`
`[CO(en)_(2)Cl_(2)]^(+)`
`[Ir(PR_(3))_(2)H(CO)]^(2+)`
`[Co(NH_(3))_(5)Cl]^(2+)`

Solution :All GIVEN compounds have CIS and trans isomers but only cis-isomer of (B) will also have optical isomers (d and l) due to presence of symmetrical didentate, en.


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