2
(i) Hexaamminecobalt(III) chloride
(ii) Pentaamminechloridocobalt(III) chloride
(iii) Potassium hexacyanidoferrate(III)
(iv) Potassium trioxalatoferrate(III)
(v) Potassium tetrachloridopalladate(II)
(vi) Diamminechlorido(methanamine)platinum(II) chloride
5 3
(i) Both geometrical (cis-, trans-) and optical isomers for cis can exist (ii) Two optical isomers can exist (iii) There are 10 possible isomers