Question

Which of the following sets of examples and geometry of the compound is not correct?

• A. Octahedral - $\lbrack Co(NH_{3})_{6}\rbrack^{3 +},\lbrack Fe(CN)_{6}\rbrack^{3 +}$
• B. Square planar - $\lbrack Ni(CN)_{4}\rbrack^{2 -},\lbrack Cu(NH_{3})_{4}\rbrack^{2 +}$
• C. Tetrahedral - $\lbrack NI(CO_{4})^{2 -},\lbrack Cu(NH_{3})_{4}\rbrack^{2 +}$
• D. Trigonal biphyramidal -$\lbrack Fe(NH_{3})_{6}\rbrack^{2 +},\lbrack CuCl_{4}\rbrack^{2 -}$

Answer 1

Answer: (D)

Trigonal biphyramidal -$\lbrack Fe(NH_{3})_{6}\rbrack^{2 +},\lbrack CuCl_{4}\rbrack^{2 -}$

Answer 2

$\lbrack CuCl_{4}\rbrack^{2 -}:$ Tetrahedral

$\lbrack Fe(NH_{3})_{6}\rbrack^{2 +}$: Octahedral