44 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 Xe+PtF6 SF6 [Xe]+[PtF6]- XeF4+Me4NF → [Me4N]+[XeF5]- · 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, (1) High steric hindrance… · 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+ A. sigma * orbitals are only… · 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 transitions… · 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+nNH4 Cl [ Reflux]C6 H5 Cl… · 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
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
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
ABC26OR1062 · The following transformation Is an example of · Cycloaddition Diels Alder
ABC26PH1027 · For the cell Cd | CdCl2 || AgCl | Ag; E°cell = 0.675 V and dE°cell/dT = -6.5 × 10-4 V K-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
ABC26PH1038 · The rate constant for the reaction A2B4O → AB4 + AO, is described as, log k = 14.1 - 10000 K/T the activation energy (in kJ mol-1) is… · Chemical Kinetics – 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 is: · Chemical Kinetics – 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 · Chemical Kinetics – 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… · Chemical Kinetics – 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
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) If… · 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… · 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
ABC26PH1444 · In a Langmuir-type adsorption, a solid adsorbs 0.25 mg of a gas when the pressure of the gas is 50 bar and 0.2 mg of the gas at 20 bar… · Adsorption Isotherms
ABC26PH1445 · Liquid A has half the surface tension and twice the density of liquid B at 30°C. The contact angles of A and B are the same. If A rises 10… · Surface Tension
ABC26PH1524 · The maximum number of phases that can be simultaneously in equilibrium for a one component system is · Thermodynamics – General
ABC26PH1525 · When yellow phosphorous is converted to red phosphorous, the entropy and volume of the system do not change. The order of this phase… · Laws State Functions
ABC26OR1097 · The pKa values for the following compounds A B C Are in the order · General Organic Chemistry – General