19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Among TiF6 2-, CoF6 3-, Cu2Cl2 and NiCl4 2- (atomic numbers of Ti = 22, Co = 27, Cu = 29, Ni = 28), the colourless species are
[Sc(H2O)6]3+ ion is
Among [Ni(CO)4], [Ni(CN)4]2– and [NiCl4]2–
The compound which does not show paramagnetism is
Which of the following complex ions/molecules of nickel is paramagnetic?
Which of the following is diamagnetic?
Which of the following octahedral complex ions is diamagnetic?
Which of the following complex ions is diamagnetic?
Which of the following complex ions is paramagnetic?
The structures of Ni(CO)4 and Ni(PPh3)2Cl2 are
Which of the following statements is correct?
The formation of the complex ion [Co(NH3)6]3+ involves sp3d2 hybridization of Co3+. Hence, the complex ion should possess
The hybridization states of the central atom in the complex ions [FeF6]3–, [Fe(H2O)6]3+ and [Ni(NH3)6]2+ are
The hybridization states of the central atom in the complexes Fe(CN)6 3–, Fe(CN)6 4– and CO(NO2)6 3– are
Which one of the following has a square planar geometry? (At. no. Co = 27, Ni = 28, Fe = 26, Pt = 78)
The magnetic moment of a complex ion is 2.83 BM. The complex ion is
The value of magnetic moment for a complex ion is 1.73 BM. The complex. ion is
Among the following ions, which one has the highest paramagnetism?
An octahedral complex is formed when hybrid orbitals or the following type are involved
Which of the following complex ions obeys Sidgwick‘s effective atomic number (EAN) rule?
The effective atomic number for the complex ion [Pd(NH3)6]4+ is
The total number of possible isomers of the complex compound [CuII(NH3)4][PtIICl4] is
Which of the following ion does not follow 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 complex ions violates the EAN rule?