629 questions from a source that prints this span of years rather than the year of each question. Each opens with its answer and explanation.
ABC26IN0388 · The VO43-, CrO42- and MnO4- ion exhibit intense ligand to metal charge transfer transition. The wavelengths of this transition follow the… · Coordination – General
ABC26IN0389 · If is the octahedral splitting energy and P is the electron pairing energy, then the crystal - field stabilization energy (CFSE) of [Co… · Coordination – General
ABC26IN0390 · The spinel structure of MgAl2O4 has cubic close packed arrangement of oxide ions. The fractions of the octahedral and tetrahedral sites… · Coordination – General
ABC26IN0391 · The water exchange rates for the complex ions follow the order · Coordination – General
ABC26IN0392 · The lowest energy d d transition of the complexes follow the order · Coordination – General
ABC26IN0393 · The symmetry label of valence p orbitals of a metal ion in an octahedral ligand field is · Coordination – General
ABC26IN0394 · Spectroscopic ground state term symbols of cobalt ions in [Co (H2 O )6 ]2+ and [CoCl4 ]2- respectively are · Coordination – General
ABC26IN0395 · For an inverse spinel, AB2 O4, the A and B, respectively, can be · Coordination – General
ABC26IN0396 · The 0 value of [Ni (H2 O )6 ]2+ is 8500 cm-1. The 0 values for [NiCl6 ]4- and [Ni (NH3 )6 ]2+ compared to [Ni (H2 O )6 ]2+ are · Coordination – General
ABC26IN0397 · The experimentally observed magnetic moment value, which match well with the spin-only values for the pair of aqueous ions is (Atomic… · Coordination – General
ABC26IN0398 · A complex is composed of one chromium ion, three bromides and six water molecules. Upon addition of excess AgNO3, 1.0 g aqueous solution of… · Coordination – General
ABC26IN0399 · The rate of the following redox reaction is slowest when X is [Co^ III (NH3 )5 X ]3+/ 2++ [Cr^ II (H2 O )6 ]2+ [Co^ II (NH3 )5 (H2 O ) ]2++… · Coordination – General
ABC26IN0400 · Among the following compounds, a normal spinel is · Coordination – General
ABC26IN0401 · The maximum numbewr of microstates for d2 electronic configuration is ____ · Coordination – General
ABC26IN0402 · In the electronic absorption spectrum of an aqueous solution of [Ni (NH3 )6 ]2+, a very weak band is observed between the bands due to the… · Coordination – General
ABC26IN0403 · The reaction of NiBr2 with two equivalents of PPh3 in CS2 at -78 C gives a red-colored diamagnetic complex. [NiBr2 (PPh3 )2 ]. This… · Coordination – General
ABC26IN0404 · The rate of the substitution reaction of [Co(CN)5 Cl ]3- with OH-to give [Co(CN)5(OH) ]3- · Coordination – General
ABC26IN0405 · The yellow color of an aqueous solution of K2 CrO4 changes to red-orange upon the addition of a few drops of HCl. The red-orange complex… · Coordination – General
ABC26IN0406 · The 0 of [Cr (H2 O )6 ]3+, [CrF6 ]3- and [Cr(CN)6 3- . follows the order: · Coordination – General
ABC26IN0407 · The spin-only magnetic moment of [Co (H2 O )6 ]2+ (rounded off to one decimal place) is ____ BM. · Coordination – General
ABC26IN0408 · The correct order of increasing intensity (molar absorptivity) of the UV-visible absorption bands for the ions [Ti (H2 O )6 ]3+, [Mn (H2 O… · Coordination – General
ABC26IN0409 · A radical contains 14 N(I=1) with hyperfine constant 1.61 mT and two equivalent protons (I=1 / 2) with hyperfine constant 0.35 mT . The ESR… · Instrumental Method – General
ABC26IN0410 · In the prooton decoupled 13 C and 31 P NMR spectra of (CH3 )3 P=0, the number of lines observed, respectively, are · Instrumental Method – General
ABC26IN0411 · If CIF3 were to be stereochemically rigid, its 19 F NMR spectrum ( I for 19 F=1/2 ) would be (assume that Cl is not NMR active) · Instrumental Method – General
ABC26IN0412 · Compound X is: · Instrumental Method – General
ABC26IN0413 · Upon heating, compound X is converted to Y, which has the same molecular formula as that of X. The 1 H NMR spectrum of Y shows two doublets… · Instrumental Method – General
ABC26IN0414 · The 31 P NMR spectrum of P4 S3 consists of · Instrumental Method – General
ABC26IN0415 · The 1 H NMR spectrum of HD consists of a · Instrumental Method – General
ABC26IN0416 · The correct pair of 1H and 31P NMR spectral patterns for C(H)(F)(PCl2)2 is: · Instrumental Method – General
ABC26IN0417 · The extent of Mossbauer quadrupole splitting of iron follows the order · Instrumental Method – General
ABC26IN0418 · The value of 'g' and the number of signals observed for the references standard, diphenylpicry lhydrazyl (DPPH), in the solid stae ESR… · Instrumental Method – General
ABC26IN0419 · The 19 F NMR spectrum of ClF3 when measured at -60 C will be observed as a · Instrumental Method – General
ABC26IN0420 · The characteristic feature of an electronic spin resonance (ESR) spectrum of frozen aqueous solution of CuSO4 5 H2 O at 77 K is · Instrumental Method – General
ABC26IN0421 · In the EPR spectrum of a methyl radical, the number of the lines and their relative intensities, respectively, are · Instrumental Method – General
ABC26IN0422 · The total number of g\| lines expected in the EPR spectrum of a solution of bis(salicylaldimine) copper(II) having pure 63 Cu and 14 N at… · Instrumental Method – General
ABC26IN0423 · The lanthanide complex (acac = acetylacetonate; phen = 1, 10-phennathroline) that do not have square antiprismatic structure is · Lanthanide And Actinide – General
ABC26IN0424 · The reaction between Pr6 O11 and dilute HCl leads to the formation of · Lanthanide And Actinide – General
ABC26IN0425 · The separation of trivalent lanthanide ions, Lu3+, Yb3+, Dy3+, Eu3+ can be effectively done by a cation exchange resion using ammonia o -… · Lanthanide And Actinide – General
ABC26IN0426 · The correct electronic configuration and spin only magnetic moment of Gd3+ (atomic number 64) are · Lanthanide And Actinide – General
ABC26IN0427 · The calculated and observed magnetic moments differ considerably for an aqua complex of a Lanthanide (III) ion as a result of low lying… · Lanthanide And Actinide – General
ABC26IN0428 · The lanthanide ion the exhibits color in aqueous solution is · Lanthanide And Actinide – General
ABC26IN0429 · Generally, the coordination number and the nature of the electronic absorption band ( f f transition )of lanthanide (III) ion in their… · Lanthanide And Actinide – General
ABC26IN0430 · In a uranium recovery process, an aqueous solution of uranyl ion is evaporated, dried in air at 400 C and subsequently reduced with… · Lanthanide And Actinide – General
ABC26IN0431 · The experimental magnetic moment (3.4 BM ) of a hydrated salt of Eu3+ at 27°C is significantly different from the calculated value. The… · Lanthanide And Actinide – General
ABC26IN0432 · The correct statement(s) about actinides is/are: · Lanthanide And Actinide – General
ABC26IN0433 · Triplet superphosphate is made by treating phosphate rock with · Main Group Element – General
ABC26IN0434 · The incorrect statement regarding carboranes is that · Main Group Element – General
ABC26IN0435 · Mg6 Si4 O10(OH)8 is commercially known as · Main Group Element – General
ABC26IN0436 · The series with the orrect order of decreasing ionic size is · Main Group Element – General
ABC26IN0437 · When Al4 C3 and Mg2 C3 reacts with H2 O, then major products formed respectively, are · Main Group Element – General