Question

Write the name, stereochemistry and magnetic behaviour 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]​

Answer 1

Name of the Complex	Hybridisation of metal ion involved	Geometry of complex	Magnetic behaviour
Potassium hexacyano manganate (II)	d2sp3	Octahedral	Paramagnetic
Pentaammine Chloridocobalt (III) Chloride	d2sp3	Octahedral	Diamagnetic
Potassium tetra cyanonikelate (II)	dsp2	Square planar	Diamagnetic