425 questions from a source that prints this span of years rather than the year of each question. Each opens with its answer and explanation.
ABC26IN0593 · The overlap between the atomic orbitals sketched below is: · Chemical Bonding – General
ABC26IN0594 · Which one of the following species is NOT isoelectronic with CN-? · Chemical Bonding – General
ABC26IN0595 · The shape of CH3 -ion is: · Chemical Bonding – General
ABC26IN0596 · The fluoride, whose value of dipole moment is not equal to zero, is · Dipole Moment Polarity
ABC26IN0597 · The average value of C-C bond in graphite is: · Chemical Bonding – General
ABC26IN0598 · The geometry of SF4 is · VSEPR Geometry
ABC26IN0599 · Among the following complexes, (i) [Ru( bipyridyl )3 ]+ (ii) [Cr(EDTA)]- (iii) trans- [CrCl2 (oxalate) 2 ]3- (iv) cis- [CrCl2 (oxalate) 2… · Coordination Compounds – General
ABC26IN0600 · The crystal field stabilization energy of high spin d7 octahedral complex is · Coordination Compounds – General
ABC26IN0601 · 3(A) [Cu (H2 O )6 ]2+ - more distorted Magnitude of JTD eg (unsymmetry) >t2 g (unsymmetry) ⇒ More electron density, more distortion. · Coordination Compounds – General
ABC26IN0602 · The complex with the most intense colour among the following is · Coordination Compounds – General
ABC26IN0603 · The electronic configuration that have orbital angular momentum contribution in an octahedral environment are · Coordination Compounds – General
ABC26IN0604 · The octahedral crystal field splitting (0 ) of d orbital energies of the following metal ions decreases in the order · Coordination Compounds – General
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… · Coordination Compounds – General
ABC26IN0606 · Write the structure of possible isomers of [CoCl2(en)2 ] Cl. · Coordination Compounds – General
ABC26IN0607 · Hydration of metal ions (M2+ ) produces an enthalpy change that is commensurate with the size, charge of the ion and crystal field… · Coordination Compounds – General
ABC26IN0608 · The ligand with only sigma ( sigma ) bonding character is · Coordination Compounds – General
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… · Coordination Compounds – General
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… · Coordination Compounds – General
ABC26IN0611 · For tetrahedral complexes, which always exhibit high spin states, the maximum CFSE (crystal field stabilization energy) is: · Coordination Compounds – General
ABC26IN0612 · In general, magnetic moment of paramagnetic complexes varies with temperature as · Coordination Compounds – General
ABC26IN0613 · 15(A) Provide IUPAC names for the following complexes: (i) [CoCl (NH3 )5 ] (ii) K2 [PdCl4 ] · Coordination Compounds – General
ABC26IN0614 · (a) Draw the crystal field splitting diagram with appropriate labels for [NiCl4 ]2-. Determine the spin only magnetic moment and the… · Coordination Compounds – General
ABC26IN0615 · Which one of the following configuration will show Jahn-Teller distortion in an octahedral field? · Coordination Compounds – General
ABC26IN0616 · The colour of potassium dichromate is due to · Coordination Compounds – General
ABC26IN0617 · Addition of an aqueous solution of Fe(II) to potassium hexacyanochromate (III) produces a brick-red coloured complex, which turn dark green… · Coordination Compounds – General
ABC26IN0618 · The oxide that has the inverse spinel structure is · Coordination Compounds – General
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… · Coordination Compounds – General
ABC26IN0620 · A coordination compound is composed of one Co(III), one chloride, one sulphate and four molecules of ammonia. The aqueous solution of the… · Coordination Compounds – General
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… · Coordination Compounds – General
ABC26IN0622 · The tetrachloro complexes of Ni(II) and Pd(II) respectively, are (atomic numbers of Ni and Pd are 28 and 46 respectively) · Coordination Compounds – General
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… · Coordination Compounds – General
ABC26IN0624 · CaO , VO and MnO have octahedral coordination of the metal ions in a rock-salt structure. The correct increasing order of their lattice… · Coordination Compounds – General
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… · Coordination Compounds – General
ABC26IN0626 · The correct order of crystal field strength is : (Given: en = enthylenediamine) · Coordination Compounds – General
ABC26IN0627 · Using crystal field theory (CFT), for the [Co (NH3 )6 ]3+ ion · Coordination Compounds – General
ABC26IN0628 · The electronic transitions responsible for the colour of K2 Cr2 O7 and porphyrin in their solid state respectively are: · Coordination Compounds – General
ABC26IN0629 · A filter paper moistened with cadmium acetate solution turns yellow upon exposure to H2 S. The transition responsible for the yellow colour… · Coordination Compounds – General
ABC26IN0630 · The first row transition metal complexes having tetrahedral geometry are high-spin due to · Coordination Compounds – General
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 ____ . · Coordination Compounds – General
ABC26IN0632 · The normal spinel among the following mixed metal-oxides is · Coordination Compounds – General
ABC26IN0633 · The ground state term for a free ion with 3 d7 configuration is · Coordination Compounds – General
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… · Coordination Compounds – General
ABC26IN0635 · The complex that is expected to show orbital contribution to the overall magnetic moment is · Coordination Compounds – General
ABC26IN0636 · The total number of isomers possible for the molecule [Co (NH3 )4 Cl (NO2 ) ]+is ____ . · Coordination Compounds – General
ABC26IN0637 · The complexes [Pt(CN)4 ]2- and [NiCl4 ]2-, respectively are · Coordination Compounds – General
ABC26IN0638 · The crystal field stabilization energy (CFSE) in [Mn (H2 O )6 ]2+ is · Coordination Compounds – General
ABC26IN0639 · The True Statement about [Cu (H2 O )6 ]2+ is · Coordination Compounds – General
ABC26IN0640 · The ion(s) that exhibit only charge transfer band in the absorption spectra (UV-visible region) is(are) · Coordination Compounds – General
ABC26IN0641 · The red colour of ruby is due to · Coordination Compounds – General
ABC26IN0642 · Nitrosyl ligand binds to d-metal atoms in linear and bent fashion and behaves, respectively, as · Coordination Compounds – General