question_answer

Which of the following complexes will show geometrical isomerism?

A)  potassium amminetrichloroplatinate (II)

B)  potassium tris(oxalato) chormate (III)

C)  aquachlorobis (ethylenediamine) cobalt (II) chloride

D)  pentaquachlorochromium (III) chloride

Correct Answer: C

Solution :

 Aquachlorobis (ethylenediamine) cobalt (II) chloride will show geometrical (cis-trans) isomerism. In cis isomer, two ethylene diamine ligands are adjacent and in trans isomer, they are opposite to each other.                 Aquachlorobis (ethylenediamine) cbalt (II) chloride