Write the name, stereochemistry and magnetic behavior of the following: 

(At. nos. Mn = 25, Co = 27, Ni = 28) 

 (i) K₄[Mn (CN)₆] 

 (ii) [Co (NH₃)₅Cl]Cl₂

 (iii) K₂[Ni (CN)₄]

(i) K₄ [Mn (CN)₆]

Name: Potassium hexacyanomanganate (II) 

 Stereochemistry - Does not show geometric or optical isomerism 

 Magnetic behaviour - Paramagnetic 

(ii) [Co (NH₃)₅Cl]Cl₂

 Name-Pentaamminechloridocobalt (III) Chloride 

 Stereochemistry- Does not geometric isomerism but is optically active 

 Magnetic behavior- Paramagnetic 

(iii) K₂[Ni (CN)₄] 

 Name: Potassium tetracyanonickelate (II) 

 Stereochemistry -Does not show geometric or optical isomerism 

 Magnetic behaviour - Diamagnetic