Questions
21
Which one of the following statement is incorrect?
Answer: Greater is the basic character of the ligand, lesser is the stability of the complex
22
Among the following ions which one has the highest paramagnetism
Answer: [Fe(H2O)6]2+
23
Among the following, the compound that I both paramagnetic and coloured is
Answer: VOSO4
24
The magnetic moment of [NiX4]2– ion is found to be zero. Then the metal of the complex ion is (X = monodentate anionic ligand).
Answer: dsp2 hybridized
25
Which of the following complex shows ionization isomerism
Answer: [CoBr(NH3)5]SO4
27
The number of ions formed, when bis (ethane-1, 2-diamine)copper (II) sulpahte is dissolve in water will be:
Answer: 2
28
The ______ sphere is enclosed in brackets in formulas for complex species, and it includes the central metal ion plus the coordinated groups.
Answer: coordination
29
(Valance Bond Theory) Magnetic measurements indicate that [Co(OH2)6]2+ has 3 unpaired electrons. Therefore, the hybridization of the metal's orbitals in [Co(OH2)6]2+ is:
Answer: sp3d2
30
A molecule that cannot be superimposed on its mirror image is said to exhibit which of the following?
Answer: optical isomerism
31
(Crystal Field Theory) Consider the complex ion [Mn(OH2)6]2+ with 5 unpaired electrons. Which response includes all the following statements that are true, and no false statements?
I. It is diamagnetic.
II. It is a low spin complex.
III. The metal ion is a d5 ion.
IV. The ligands are weak field ligands.
V. It is octahedral.
Answer: III, IV, V
32
(Crystal Field Theory) When the valence d orbitals of the central metal ion are split in energy in an octahedral ligand field, which orbitals are raised least in energy?
Answer: dxy, dxz and dyz
