ABC26IN1125 · The correct set of information is · JUNE 2019
ABC26IN0145 · Hydrolysis of trans-[CoLCl(en)2]+ (L = NO2-, NCS-, OH-, Cl-) results in a product (A). The tendency to form cis-isomer of the product (A)… · 2019
ABC26IN1127 · Hydrolysis of trans-[CoLCl(en)2]+ (L = NO2-, NCS-, OH-, Cl-) results in a product (A). The tendency to form cis-isomer of the product (A)… · JUNE 2019
ABC26IN0147 · Correct order of molar extinction coefficient values of the visible absorption bands for the following species is · 2019self-practice
ABC26IN1130 · Correct order of molar extinction coefficient values of the visible absorption bands for the following species is · JUNE 2019
ABC26IN0149 · FeCr2O4 and NiGa2O4 have normal and inverse spinel structures, respectively. The correct statement is · 2019
ABC26IN1132 · FeCr2 O4 and NiGa2 O4 have normal and inverse spinel structures, respectively. The correct statement is · JUNE 2019
ABC26IN0150 · The correct match of spin-only magnetic moment for the complexes cis-[Fe(phen)2(NCS-N)2] (A) and [Fe(phen)3]Cl2 (B) at 300 K is… · 2019
ABC26IN1133 · The correct match of spin-only magnetic moment for the complexes cis- [Fe(phen)2(NCS-N)2 ] (A) and [Fe(phen)3 ]Cl2 (B) at 300 K is (phen… · JUNE 2019
ABC26IN0153 · The number of geometrical isomers of the complex [RhH(C CR)2 (PMe3 )3 ] is · 2019
ABC26IN1136 · The number of geometrical isomers of the complex [RhH(C CR)2 (PMe3 )3 ] is · JUNE 2019
ABC26IN1142 · The value of magnetic moment will be independent of temperature for(acac = acetylacetonato; OAc = acetate; o-phen = o-phenathroline; Pz =… · JUNE 2019
ABC26IN0157 · The calculated heat of formation ( Delta Hf) for NaCl2 and CaF is · 2020self-practice
ABC26IN1145 · The calculated heat of formation ( Delta Hf ) for NaCl2 and CaF is · JUNE 2019
Coordination Compounds – General
ABC26IN0599 · Among the following complexes, (i) [Ru( bipyridyl )3 ]+ (ii) [Cr(EDTA)]- (iii) trans- [CrCl2 (oxalate) 2 ]3- (iv) cis- [CrCl2 (oxalate) 2… · 2005-2022
ABC26IN0600 · The crystal field stabilization energy of high spin d7 octahedral complex is · 2005-2022
ABC26IN0601 · 3(A) [Cu (H2 O )6 ]2+ - more distorted Magnitude of JTD eg (unsymmetry) >t2 g (unsymmetry) ⇒ More electron density, more distortion. · 2005-2022
ABC26IN0602 · The complex with the most intense colour among the following is · 2005-2022
ABC26IN0603 · The electronic configuration that have orbital angular momentum contribution in an octahedral environment are · 2005-2022self-practice
ABC26IN0604 · The octahedral crystal field splitting (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
ABC26IN0606 · Write the structure of possible isomers of [CoCl2(en)2 ] Cl. · 2005-2022
ABC26IN0607 · Hydration of metal ions (M2+ ) produces an enthalpy change that is commensurate with the size, charge of the ion and crystal field… · 2005-2022self-practice
ABC26IN0608 · The ligand with only sigma ( sigma ) bonding character is · 2005-2022
ABC26IN0609 · [Cr (H2 O )6 ]3+ gave an absorption at 208 kJ / mol which corresponds to 0. Calculate the crystal field stabilisation energy of this… · 2005-2022self-practice
ABC26IN0610 · 12(a) For the complexes [FeF6 ]3- and [Fe(CN)6 ]3-. (i) Show the hybridization using VB(valence bond) theory (ii) Calculate the CFSE… · 2005-2022
ABC26IN0611 · For tetrahedral complexes, which always exhibit high spin states, the maximum CFSE (crystal field stabilization energy) is: · 2005-2022
ABC26IN0612 · In general, magnetic moment of paramagnetic complexes varies with temperature as · 2005-2022
ABC26IN0613 · 15(A) Provide IUPAC names for the following complexes: (i) [CoCl (NH3 )5 ] (ii) K2 [PdCl4 ] · 2005-2022
ABC26IN0614 · (a) Draw the crystal field splitting diagram with appropriate labels for [NiCl4 ]2-. Determine the spin only magnetic moment and the… · 2005-2022self-practice
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
ABC26IN0619 · The magnetic moment of [Fe(phen)2(NCS)2 ] varies with temperature. The magnetic moments at 200 K and 50 K are 4.9 BM and 0 BM… · 2005-2022self-practice
ABC26IN0620 · A coordination compound is composed of one Co(III), one chloride, one sulphate and four molecules of ammonia. The aqueous solution of the… · 2005-2022self-practice
ABC26IN0621 · The spin-only magnetic moments of K3 [Fe( oxalate )3 ] and K3 [Ru( oxalate )3 ] are 5.91 and 1.73 , respectively. Write down their ligand… · 2005-2022self-practice
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
ABC26IN0623 · Show with labels the splitting of d-orbitals in an octahedral ligand field. Calculate the CFSE of (i) high spin d6 and (ii) low spin d6… · 2005-2022self-practice
ABC26IN0624 · CaO , VO and MnO have octahedral coordination of the metal ions in a rock-salt structure. The correct increasing order of their lattice… · 2005-2022self-practice
ABC26IN0625 · Assume the complex [Ni (PPh3 )2(SCN)2 ] is paramagnetic. The analogous complex of Pd(II) is diamagnetic. Draw all the probable isomers for… · 2005-2022self-practice
ABC26IN0626 · The correct order of crystal field strength is : (Given: en = enthylenediamine) · 2005-2022
ABC26IN0627 · Using crystal field theory (CFT), for the [Co (NH3 )6 ]3+ ion · 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
ABC26IN0631 · Given that the crystal field stabilization energy for [Co (H2 O )6 ]2+ is 7360 cm-1, the calculated value of 0 in kJ mol-1 is ____ . · 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 , the total number of unpaired electrons in this complex… · 2005-2022