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5. Co-ordination chemistry — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry5. Co-ordination chemistry1 Mark
MCQ
Which of the following statements is incorrect?
  • A
    The stability constant of $[Co(NH_3)_6]^{3+}$ is greater than that of $[Co(NH_3)_6]^{2+}$
  • ✓
    The cyano complexes are far more stable than those formed by halide ions
  • C
    The stability of halide complexes follows the order $I^- < Br^- < Cl^-$
  • D
    The stability constant of $[Cu(NH_3)_4]^{2+}$ is greater than that of $[Cu(en)_2]^{2+}$
✓

Answer

Correct option: B.
The cyano complexes are far more stable than those formed by halide ions
b

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