| (I) \[{{\left[ Co\left( EDTA \right) \right]}^{-}}\]has two optical isomers. |
| (II) \[{{\left[ Co{{\left( N{{H}_{3}} \right)}_{4}},{{\left( N{{O}_{2}} \right)}_{2}} \right]}^{+}}\]show linkage isomers. |
| (Ill) For \[[Pt(py)(N{{H}_{3}})(N{{O}_{2}})ClBrl]\]Theoretically fifteen different geometrical isomers are possible. |
| (IV) \[[Cr{{({{H}_{2}}O)}_{4}}C{{l}_{2}}]\,\,C{{l}_{2}}.2{{H}_{2}}O\]can show hydrate as well as ionisation isomerism. |
A) II, III
B) III
C) I, III
D) I, III & III
Correct Answer: D
Solution :
(I), (II) and (III) are correct statements. (IV) It is an example of only hydrate isomerism not ionisation isomerism because ionisation isomerism occurs owing to exchange of ions between coordination and ionisation spheres.
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