19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
[Cr(H2O)6]Cl3 (at. no. of Cr = 24) has a magnetic moment of 3.83 BM, the correct distribution of 3d- electrons in the chromium of the complex is [CBSE AIPMT 2006] (a) xz x -y , x 3d 3d ,3d (b) xy x -y , 3d ,3d 3d , yz…
The geometry of Ni(CO)4 and Ni(PPh3)2Cl2 are [Manipal 2006]
Cr3+ form four complexes with four different ligands which are [Cr(Cl)6]3–, [Cr(H2O)6]3+, [Cr(NH3)6]3+ and [Cr(CN)6]3–. The order of CFSE (0) in these complexes is in the order :
The magnitude of crystal field stabilization energy in tetrahedral complexes (CFSE of t ) is considerably less than that in the octahedral field because
The crystal field splitting energy for octahedral ( ) and tetrahedral ( t ) complexes is related as (a) t (b) t (c) t (d) t
Assign the hybridization, shape and magnetic moment of K3[Cu(CN)4]:
[Cr(H2O)6]Cl3 (atomic number of Cr = 24) has a magnetic moment of 3.83 B.M. The correct distribution of 3d electrons in the chromium present in the complex 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?
Match each set of hybrid orbitals from LIST-I with complex(es) given is LIST-II LIST-I LIST-II (P) dsp2 (1) [FeF6]4– (Q) sp3 (2) [Ti(H2O)3Cl3] (R) sp3d2 (3) [Cr(NH3)6]3+ (S) d2sp3 (4) [FeCl4]2– (5) Ni(CO)4 (6) [N…
Ammonia gas does not evolve from the complex FeCl3.4NH3 but it gives white precipitate with aqueous solution of AgNO3. Coordination number of central metal ion in the above complex is six. Give IUPAC name of the complex
Which of the following is the correct order of increasing field strength of ligands to form coordination compounds? (NEET 2020)
What is the correct electronic configuration of the central atom in K4[Fe(CN)6] based on crystal field theory? (NEET UG 2019)
Iron carbonyl, Fe(CO)5 is (NEET 2018)
Which one of the following ions exhibits d-d transition and paramagnetism as well? (NEET 2018) (a) 2- Cr O (b) - MnO (c) 2- CrO (d) 2- MnO
The type of isomerism shown by the complex [CoCl2(en)2] is (NEET 2018)
The geometry of Ni (CO)4 and and Ni (P Ph3)2 Cl2 are
Among [NiCO4], [Ni(CN)4]2–, [NiCl4]2– species, the hybridisation states of the Ni atom are, respectively (At. no. of Ni = 28)
Which one of the following is wrongly matched?
The geometry and magnetic behaviour of the complex [Ni(CO)4] are (NEET 2018)
The correct order of the stoichiometries of AgCl formed when AgNO3 in excess is treated with the complexes: CoCl36NH3, CoCl35NH3, CoCl34NH3 respectively is (NEET 2017)
The pair having the same magnetic moment is: [At, No. : Cr = 24, Mn = 25, Fe = 26, Co = 27]
An example of a sigma bonded organometallic compound is (NEET 2017)
Among TiF6 2-, CoF6 3-, Cu2Cl2 and NiCl4 2- (atomic numbers of Ti = 22, Co = 27, Cu = 29, Ni = 28), the colourless species are