1) The geometries of the ammonia complexes of Ni2+, Pt2+ and Zn2+ respectively are A) octahedral, square planar and tetrahedral B) square planar, octahederal and tetrahedral C) tetrahedral, square planar and octahedral D) octahedral, tetrahedral and square planar Answer: Option AExplanation:$[Ni(NH_{3)_{6}}]^{2+} sp^{3}d^{2}octahedral$ $[Pt(NH_{3)_{4}}]^{2+} dsp^{2}squareplanar$ $[Zn(NH_{3)_{4}}]^{2+} sp^{3}tetrahedral$
