Question

Geometrical shapes of the complexes formed by the reaction of $N{i}^{2+}$ with $C{l}^{–},C{N}^{–}$ and $H_{2}O$, respectively are

• A. Square planar, tetrahedral and octahedral
• B. Octahedral, square planar and octahedral
• C. Octahedral, tetrahedral and square planar
• D. Tetrahedral, square planar and octahedral

Answer 1

The correct option is D Tetrahedral, square planar and octahedral

$N{i}^{+2}+4C{l}^{-}\to [NiC{l}_4{]}^{-2}$ (tetrahedral)
$N{i}^{+2}+4C{N}^{-}\to Ni(CN{)}_4^{-2}$ (square planar)
$N{i}^{+2}+H_{2}O\to Ni(H_{2}O{)}_6^{+2}$ (octahedral)