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On treatment of 100 mL of 0.1 M solution of CoCl3.6H2O with excess of AgNO3; 1.2 × 1022 ions are precipitated. The complex is
In the complex with formula MCl3. 4H2O, the coordination number of the metal M is six and there is no molecule of hydration in it. The volume, if 0.1 M AgNO3 solution needed to precipitate the free chloride ions in 20…
Consider the following statements: According the Werner‘s theory. 1. Ligands are connected to the metal ions by covalent bonds. 2. Secondary valencies have directional properties 3. Secondary valencies are non-ionisab…
Which of the following complex ions violates the EAN rule?
Mn H O 25–2 12 . Thus it violates EAN rule. Pt NH Fe CN 78 – 4 12 24+0 12 Fe CO 26+ 0 10
Which of the following ion does not follow EAN rule?
The effective atomic number for the complex ion [Ni(CN)4]2– is
The effective atomic number for the complex ion [Pd(NH3)6]4+ is
Which of the following complex ions obeys Sidgwick‘s effective atomic number (EAN) rule?
An octahedral complex is formed when hybrid orbitals or the following type are involved
Among the following ions, which one has the highest paramagnetism?
The value of magnetic moment for a complex ion is 1.73 BM. The complex. ion is
The magnetic moment of a complex ion is 2.83 BM. The complex ion is
Which one of the following has a square planar geometry? (At. no. Co = 27, Ni = 28, Fe = 26, Pt = 78)
The hybridization states of the central atom in the complexes Fe(CN)6 3–, Fe(CN)6 4– and CO(NO2)6 3– are
The hybridization states of the central atom in the complex ions [FeF6]3–, [Fe(H2O)6]3+ and [Ni(NH3)6]2+ are
The formation of the complex ion [Co(NH3)6]3+ involves sp3d2 hybridization of Co3+. Hence, the complex ion should possess
Which of the following statements is correct?
The structures of Ni(CO)4 and Ni(PPh3)2Cl2 are
Which of the following complex ions is paramagnetic?
Which of the following complex ions is diamagnetic?
Which of the following octahedral complex ions is diamagnetic?
Which of the following is diamagnetic?
Which of the following complex ions/molecules of nickel is paramagnetic?
The compound which does not show paramagnetism is