Engineering
Chemistry
Electrolytes and Types
Question
Geometrical shapes of the complexes formed by the reaction of Ni2+ with Cl¯ , CN¯ and H2O, respectively are
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Solution
Complexes are : [NiCl4]–2, [Ni(CN)4]–2 & [Ni(H2O)6]+2
Ni+2 = 3d84s0
[NiCl4]–2 : Now Since, Cl– is a weak legand so no pairing of electron take place and geometry is tetrahedral
[Ni(CN)4]–2 : Since, CN– is a strong legand so pairing of electron will take place & geometry is square planar.
[Ni(H2O)6]+2 : It will formed octahedral complex since C.N. = 6
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