61 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0822 · Identify the correct statement for the two reactions given below arrayl Xe+PtF6 SF6 [Xe]+[PtF6]- \\ XeF4+Me4NF [Me4N]+[XeF5]- array · Acids & Bases – General
ABC26IN0917 · Match the items of column I with the applications given in column II · Bioinorganic Chemistry – General
ABC26IN0918 · Match the iron and copper proteins with biological function in the table below: The correct matches are · Copper Proteins
ABC26IN0919 · In 3-iron ferredoxins, the number of sulfide bridges and cysteinyl ligands, respectively, are: · Iron Sulfur Proteins
ABC26IN0920 · Which of the following statements for rubredoxin, A. F2+ center has a tetrahedral geometry. B. Reduced form of iron is diamagnetic. C. F2+… · Iron Sulfur Proteins
ABC26IN0982 · Among the following which set of molecular/ionic species all have a planar structure? · Hydrogen Bonding Weak Interactions
ABC26IN0983 · The total number of lone pairs of electrons on all the atoms in cyanogen azide and thiocyanogen respectively, are · Hydrogen Bonding Weak Interactions
ABC26IN1146 · Which of the following statements regarding dissociative substitution in an octahedral transition metal complex, arrayl (1)\ High steric… · Reaction Mechanisms Substitution
ABC26IN1147 · Consider an octahedral complex Ma2b2cd, where a, b, c, and d are monodentate ligands. The number of enantiomeric pairs for the complex is · Molecular Orbital Ligand Field
ABC26IN1148 · For the ligand-to-metal charge-transfer (LMCT) transitions in the oxo-anions given below, the wavelength of the transitions are in the order · Charge Transfer Spectra
ABC26IN1149 · Consider the following statements for the self-exchange electron transfer reaction in [Cr (H2 O )6 ]2+/3+ arrayl A. sigma * orbitals are… · Electron Transfer Redox
ABC26IN1150 · The number of CO bands for isomers from sets (i) and (ii) in their IR spectra Set (i): Trigonal bipyramidal isomers, axial- Fe(CO)4 L(A)… · Term Symbols Spectra
ABC26IN1151 · The absorption spectrum of [Cr (NH3 )6 ]3+ in water shows two bands around 475 and 365 nm . The ground term and the spin-allowed… · Term Symbols Spectra
ABC26IN1152 · For trigonal bipyramidal coordination complex (ML5) the correct point group symmetry and the relative order of the energies of the 3d… · Crystal Field Theory
ABC26IN1228 · The effective magnetic moment (in BM) for a lanthanide f10 ion is approximately · Lanthanides & Actinides – General
ABC26IN1324 · The correct order of the electron affinity for one-electron gain of the elements is · Main Group Elements – General
ABC26IN1325 · Which of the statements (A-D) given below are correct for B2H6 molecule: A. Addition of Et2O.BF3 to NaBH4 in a polyether solvent produces… · Main Group Elements – General
ABC26IN1326 · Which of the following reaction(s) do(es) NOT occur (i) [NPCl2]3 + 6\,NaF [Reflux]MeCN [NPF2]3 + 6\,NaCl (ii) n\,PCl5 + n\,NH4Cl… · Main Group Elements – General
ABC26IN1504 · Consider following statement(s) in the context of NO and CO ligands A. In the bent mode, NO donates three electrons to the metal center. B… · 18 Electron Rule
ABC26IN1505 · Consider the following statement (s) in the context of organometallic complex (x) X A. The carbene ligand donates two electrons to the… · 18 Electron Rule
ABC26IN1506 · The correct geometries for the metal carbonyl clusters, A-C A. [Ru6(CO)17B ]- B. [Os6(CO)18P ]- C. [Os4(CO)16 ] are · Cluster Compounds Wade Rules
ABC26IN1507 · Identify the thermodynamically stable structure of [(5-C5H5)Fe( mu -CO)(NO)]2 · Cluster Compounds Wade Rules
ABC26IN1508 · The major product formed in the following reaction +\ PhMgBr\ [Pd(PPh3)4] · Organometallic Compounds – General
ABC26IN1509 · The structure of the reactive intermediate generated by the reaction of CHCl3 and KOH is · Cluster Compounds Wade Rules
ABC26OR1010 · The correct order of C=O stretching frequency in IR spectrum for the following compound is A B C · IR
ABC26OR1011 · Which of the following molecule has the 1H NMR spectrum: delta 2.3 (s, 3H), 3.9 (s, 3H), 7.25 (d, J=7Hz, 2H), 7.95 (d, J=7Hz, 2H) ppm. · NMR 1H
ABC26OR1012 · A compound shows [M]+ at m/z 84 and has base peak at 56. It exhibits only one peak in 1H NMR at delta 1.4 ppm and one signal in 13C NMR at… · NMR 1H
ABC26OR1013 · Which of the patterns (A,B,C or D) fits best with the 13 C ~ N M R spectrum of TiCl3 (CDH2 ), [Given: J(C-H)1 > J(C-D)1 ] · NMR 13C
ABC26OR1062 · The following transformation Is an example of · Cycloaddition Diels Alder
ABC26OR1063 · The major product formed in the following reaction is · Pericyclic Reactions – General
ABC26OR1064 · The major product in the following reaction is + · Pericyclic Reactions – General
ABC26OR1065 · (being typed) · Pericyclic Reactions – General
ABC26OR1066 · (being typed) · Pericyclic Reactions – General
ABC26PH1027 · For the cell Cd |CdCl2 \| AgCl | Ag ; E_ cell o=0.675 V and dE_ cell o / dT=-6.5 10-4 VK-1 at 27 C. The Delta H (kJ mol-1 ) value for the… · Electrochemistry – General
ABC26PH1028 · For weak electrolyte like acetic acid, the relation among conductance ( lambda ), equilibrium constant (K) and concentration (C) can be… · Conductance
ABC26PH1029 · The amount of Ba (NO3 )2 (molecular weight 261.32 amu) required to be added to 500 g of a 0.11 mol kg-1 solution of KNO3 in order to raise… · Debye Huckel
ABC26PH1030 · Consider following terms. Identify those which are relevant to d.c. polarography A. Thermal current B. Supporting electrolyte C… · Polarography Voltammetry
ABC26PH1038 · The rate constant for the reaction A2 B4 O AB4+AO, is described as, k=14.1-10000 K/T the activation energy (in kJ mol-1 ) is closest to · Elementary Process Rate Constant – General
ABC26PH1039 · The rate of decomposition of a gas is 10 mM s-1 when 10 \% is reacted and it is 5 mM s-1 when 40 \% is reacted. The order of the reaction… · Elementary Process Rate Constant – General
ABC26PH1040 · For a person weighing 70 kg the minimal volume (in mL ) of a fatal dose of a compound with LD50=80 mg . kg-1, and density = 1.45 g . mL-1 is · Elementary Process Rate Constant – General
ABC26PH1041 · For the reaction, [cis-M(en)2(OH)2 ]+ k2k1 [trans-M(en)2(OH)2 ]+ the equilibrium constant is 0.16 and k1 is 3.3 10-4 s-1. The experiment is… · Elementary Process Rate Constant – General
ABC26PH1149 · The correct statement from the following set (i) to (iv) is (i) if q is the displacement from equilibrium for harmonic motion, the… · Vibrational
ABC26PH1150 · Match the following Energy-dispersive X-ray spectroscopy (EDS) 9 · Molecular Spectroscopy – General
ABC26PH1151 · The molecule that will not absorb in the microwave region, but will absorb in the infra-red region · Molecular Spectroscopy – General
ABC26PH1152 · The following data is obtained for a light diatomic (AB) molecule from its rotational Raman spectrum. (B=2 cm-1 ; xe=0.01 ; ve=1600 cm-1 )… · Raman
ABC26PH1366 · Plutonium (atomic mass =244\,g\,mol-1) crystallizes in monoclinic lattice (a=620\,pm, b=480\,pm, c=1100\,pm; beta =102 ) with 16 atoms per… · Crystal Systems Lattices
ABC26PH1367 · The miller indices of the planes parallel to the b axis and intersecting the a and c axis, as shown in the figure, are · Crystal Systems Lattices
ABC26PH1382 · The Number of microstates corresponding to 4F atomic term? · Statistical Thermodynamics – General
ABC26PH1411 · For a micro-canonical system, the correct probability distribution function for energy is given by · Statistical Equilibrium
ABC26PH1443 · The volume of nitrogen gas adsorbed at STP to form a monolayer on a porous solid surface is · Surface Chemistry – General