Coordination Chemistry

ABC26IN0157 · The calculated heat of formation (Delta Hf) for NaCl2 and CaF is [CSIR-2020] · 2020 self-practice

ABC26IN1145 · The calculated heat of formation (Delta Hf) for NaCl2 and CaF is · JUNE 2019

ABC26IN0599 · Among the following complexes, (i) [Ru(bipyridyl)3]+ (ii) [Cr(EDTA)]- (iii) trans- [CrCl2 (oxalate) 2]3- (iv) cis- [CrCl2 (oxalate) 2]3-… · 2005-2022

ABC26IN0600 · The crystal field stabilization energy of high spin d7 octahedral complex is · 2005-2022

ABC26IN0602 · The complex with the most intense colour among the following is · 2005-2022

ABC26IN0604 · The octahedral crystal field splitting (Delta 0) of d orbital energies of the following metal ions decreases in the order · 2005-2022

ABC26IN0605 · The optical absorption spectrum of [Ti (H2 O)6]3+ has its absorption maximum at 20300 cm-1. The magnitude of crystal field stabilization… · 2005-2022

ABC26IN0608 · The ligand with only sigma (sigma) bonding character is · 2005-2022

ABC26IN0611 · For tetrahedral complexes, which always exhibit high spin states, the maximum CFSE (crystal field stabilization energy) is: · 2005-2022

ABC26IN0615 · Which one of the following configuration will show Jahn-Teller distortion in an octahedral field? · 2005-2022

ABC26IN0616 · The colour of potassium dichromate is due to · 2005-2022

ABC26IN0617 · Addition of an aqueous solution of Fe(II) to potassium hexacyanochromate (III) produces a brick-red coloured complex, which turn dark green… · 2005-2022

ABC26IN0618 · The oxide that has the inverse spinel structure is · 2005-2022

ABC26IN0622 · The tetrachloro complexes of Ni(II) and Pd(II) respectively, are (atomic numbers of Ni and Pd are 28 and 46 respectively) · 2005-2022

ABC26IN0626 · The correct order of crystal field strength is : (Given: en = enthylenediamine) · 2005-2022

ABC26IN0628 · The electronic transitions responsible for the colour of K2 Cr2 O7 and porphyrin in their solid state respectively are: · 2005-2022

ABC26IN0629 · A filter paper moistened with cadmium acetate solution turns yellow upon exposure to H2 S. The transition responsible for the yellow colour… · 2005-2022

ABC26IN0630 · The first row transition metal complexes having tetrahedral geometry are high-spin due to · 2005-2022

ABC26IN0632 · The normal spinel among the following mixed metal-oxides is · 2005-2022

ABC26IN0633 · The ground state term for a free ion with 3 d7 configuration is · 2005-2022

ABC26IN0634 · Given that the expected spin-only magnetic moment for (Et4 N)2 [NiCl4] is 2.83 mu B, the total number of unpaired electrons in this complex… · 2005-2022

ABC26IN0635 · The complex that is expected to show orbital contribution to the overall magnetic moment is · 2005-2022

ABC26IN0636 · The total number of isomers possible for the molecule [Co (NH3)4 Cl (NO2)]+is ____. · 2005-2022

ABC26IN0637 · The complexes [Pt(CN)4]2- and [NiCl4]2-, respectively are · 2005-2022

ABC26IN0638 · The crystal field stabilization energy (CFSE) in [Mn (H2 O)6]2+ is · 2005-2022

ABC26IN0639 · The True Statement about [Cu (H2 O)6]2+ is · 2005-2022

ABC26IN0641 · The red colour of ruby is due to · 2005-2022

ABC26IN0642 · Nitrosyl ligand binds to d-metal atoms in linear and bent fashion and behaves, respectively, as · 2005-2022

ABC26IN0643 · The number of unpaired electron(s) in K2 NiF6 is ____. · 2005-2022

ABC26IN0644 · The correct order of enthalpy of hydration for the transition metal ions is · 2005-2022

ABC26IN0645 · The correct order of wavelength of absorption (lambda max) of the Cr -complexes is (en = ethylenediamine) · 2005-2022

ABC26IN0647 · The number of possible isomers for [Pt(py) (NH3) BrCl] is ____ (py is pyridine) · 2005-2022

ABC26IN0648 · The correct order of Delta 0 (the octahedral crystal field splitting of d orbitals) values for the following anionic metal complexes is · 2005-2022

ABC26IN0649 · The magnitude of crystal field stabilization energy(CFSE) of octahedral [Ti (H2 O)6]3+ complex is 7680 cm-1. The wavelength at the maximum… · 2005-2022 self-practice

ABC26IN0650 · The observed magnetic moments of octahedral Mn3+, Fe3+ and Co3+ complexes are 4.95,6.06 and 0.00 BM, respectively. The correct option for… · 2005-2022

ABC26IN0652 · The correct trend in the rate of substitution of Cl- by pyridine in the following complexes is (I) (II) (III) (IV) · 2005-2022

ABC26IN0653 · The total number of all possible isomers of [Co (H2 NCH2 CH2 NH2)2 Cl2]+and [Co (H2 NCH2 CH2 NH2)3]3+ · 2005-2022

ABC26IN0654 · The d–orbitals involved in the hybridization to form square planar and trigonal bipyramidal geometries are, respectively · 2005-2022

ABC26IN0657 · Reaction of [Ni(CN)4]2- with metallic potassium in liquid ammonia at -33° C yields complex E. The geometry and magnetic behavior of E… · 2005-2022

ABC26IN0658 · If the crystal field splitting energy of [Co (NH3)4]2+ is 5900 cm-1, then the magnitude of its crystal field stabilization energy, in kJ… · 2005-2022 self-practice

ABC26IN0660 · According to the crystal field theory, d-d transition observed in [Ti (H2 O)6]3+ is · 2005-2022

ABC26IN0661 · The total number of microstates possible for a d8 electronic configuration is ____. · 2005-2022

ABC26IN0663 · The total number of optically active isomers of dichloridobis (glycinato)cobaltate(III) ion is ____. · 2005-2022

ABC26IN0664 · The ground state and the maximum number of spin-allowed electronic transitions possible in a Co2+ tetrahedral complex, respectively, are · 2005-2022

ABC26IN0665 · The number of unpaired electrons in [Co (H2 O)6]2+ is ____. · 2005-2022

ABC26IN0666 · Total degeneracy (number of microstates) for a Ti3+ ion in spherical symmetry is ____. · 2005-2022

ABC26IN0329 · The complexes [Co (NH3)4 (H2O)Cl]Br2 and [Co (NH3)4Br2]Cl2O are examples of · 2005-2021

ABC26IN0330 · In the trigonal bipyramidal crystal field, the d orbital with the highest energy is · 2005-2021

ABC26IN0331 · Ligand field stabilization energies are smaller for lanthanides compared to transition metals in the same oxidation state because · 2005-2021

ABC26IN0333 · The pair of ions that most commonly forms complexes with coordination number 2 is · 2005-2021