1.

Geometrical shapes of the complexes formed by the reaction of Ni^(2+) with Cl^(-), CN^(-) and H_(2)O, respectively, are

Answer»

Octahedral, TETRAHEDRAL and square planar
Tetrahedral, square planar and octahedral
Square planar, tetrahedral and octahedral
Octahedral, square planar and octahedral

Solution :`NI^(2)+4Cl^(-)rarr[Ni(Cl)_(4)]^(2-)`, tetrahedral, `sp^(3)`, hybridization
`Ni^(2+)+4CN^(-)rarr[Ni(CN)_(4)]^(2-)`, square planar, `DSP^(2)` hybridization
`Ni^(2)+6H_(2)Orarr[Ni(H_(2)O)_(6)]^(2+)`, octahedral, `sp^(3)d^(2)` hybridization.


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