97 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0055 · Match list I (compounds) with list II (structures), and select the correct answer using the codes given below. · Chemical Bonding – General
ABC26OR0142 · The major products A and B in the following reaction sequence are Delta (A) (B) · Pericyclic Reactions – General
ABC26OR0182 · The major product formed in the following reaction is · Named Reactions
ABC26OR0183 · The major product formed in the following reaction is [-70°C]LiAlH4 · Named Reactions
ABC26OR0192 · The major products A and B in the following reaction sequence are Delta A (dimer) [(2) TsOH](1) NaBH4.MeOH B · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0193 · The major products A and B in the following reaction sequence are (B) · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26PH0003 · The term symbol for the ground state of nitrogen atoms is · Term Symbols Atoms
ABC26PH0004 · Observe the following electronic transition of a diatomic molecule. (A) 1 Sigma g+ → 3 Sigma g+ (B) 1 Sigma u+ → 1 Sigma g+ (C) 1 Delta u →… · Selection Rules
ABC26PH0014 · At any temperature for the following reaction (D and T are deuterium and tritium respectively) correct statement is: (A) HCl + F → HF + Cl… · Chemical Kinetics – General
ABC26PH0015 · An example of a relaxation method of measuring rates is: · Chemical Kinetics – General
ABC26PH0016 · The half life of a zero order reaction (A → P) is given by (k = rate constant): · Rate Laws Order
ABC26PH0017 · For a reaction, the rate constant k at 27°C was found to be k = 5.4 × 1011 e-50. The activation energy of the reaction is: · Arrhenius Activation
ABC26PH0018 · The carbon-14 activity of an old wood sample is found to be 14.2 disintegrations min-1 g-1. Calculate age of old wood sample, if for a… · Chemical Kinetics – General
ABC26PH0019 · "Phosphorescence" is represented as · Chemical Kinetics – General
ABC26PH0020 · Using cuvettes of 0.5 cm path length, a 10-4 M solution of a chromophore shows 50% transmittance at certain wave length. The molar… · Chemical Kinetics – General
ABC26PH0077 · The symmetry point group of ethane in its staggered conformation is · Symmetry Elements Point Groups
ABC26PH0078 · The character table of the C2v point group is given below: The two functions varphi = p1 + 2p2 + 2p3 + p4 and varphi = p1 - 2p2 - 2p3 + p4… · Character Tables
ABC26PH0096 · Two alpha particles having speeds S1 and S2 have kinetic energies 1 and 2 MeV respectively; the relationship between S1 and S2 is : · Gaseous State – General
ABC26PH0105 · The Q band in the vibrational spectrum of acetylene is observed in the · Molecular Spectroscopy – General
ABC26PH0106 · The sodium D lines are due to 2P1/2 → 2S1/2(Delta E1) and 2P1/2 → 2S1/2(Delta E2) transitions. The splitting due to spin-orbit coupling in… · Molecular Spectroscopy – General
ABC26PH0107 · The rotational constant of 14N2 is 2 cm-1. The wave number of incident radiation in a Raman spectrometer is 20487 cm-1. What is the wave… · Raman
ABC26PH0108 · The vibrational energy levels, v''=0 and v'=1 of a diatomic molecule are separated by 2143 cm-1. Its anharmonicity omega e xe is 14 cm-1… · Vibrational
ABC26PH0121 · The osmotic pressure (pi) of a polymer sample at different concentrations (c) was measured at T(K). A plot of (pi /c) versus c gave a… · Molecular Weight Averages
ABC26PH0194 · If theta r denotes the characteristic temperatures of rotation, then the magnitude of [ theta r, (H2). theta r (D2)] / [ theta r(H D)]2… · Statistical Thermodynamics – General
ABC26PH0195 · Two alpha particles having speeds S1 and S2 have kinetic 1 and 2 MeV respectively; the relationship between S1 and S2 is : · Statistical Thermodynamics – General
ABC26PH0211 · Flocculation value of K2SO4 is much less than that of KBr for Sol A. Floccultion value of CaCl2 is much less than that of NaCl for Sol B… · Surface Chemistry – General
ABC26PH0212 · The Langmuir adsorption isotherm is given by theta =kp/(1+kp), where P is the pressure of the adsorabate gas. The Langmuir adsorption… · Adsorption Isotherms
ABC26PH0225 · 1 mol of CO2, 1 mol of N2 and 2 mol of O2 were mixed at 300 K. The entropy of mixing is · Laws State Functions
ABC26PH0226 · For the liquid ⇌ vapour equilibrium of a substance dP/dT at 1 bar and 400 K is 8 × 10-3 bar K-1. If the molar volume in the vapour form is… · Laws State Functions
ABC26IN0852 · Superoxide dismutase contains the metal ions · Metal Toxicity Medicine
ABC26IN0853 · Among the following drugs, the anticancer agents is: · Bioinorganic Chemistry – General
ABC26IN0854 · The reduction of nitrogen to ammonia, carried out by the enzyme nitrogenase, needs, · Nitrogen Fixation
ABC26IN0855 · A metal ion that replace manganese (II) ion in mangano-proteins without changing its function, is · Iron Sulfur Proteins
ABC26IN0856 · In the bacterial rubredoxin, the number of iron atoms, sulfur bridges and cysteine ligands are Fe atom Sulfur bridge Cysteine · Iron Sulfur Proteins
ABC26IN0995 · The term symbol for the ground state of nitrogen atoms is · Term Symbols Spectra
ABC26IN0996 · The complex that absorbs light of shortest wavelength is · Coordination Chemistry – General
ABC26IN0997 · Green coloured Ni(PPh2Et)2Br2, has a magnetic moment of 3.20 B.M. The geometry and the number of isomers possible for the complex… · Coordination Chemistry – General
ABC26IN0998 · Observe the following electronic transition of a diatomic molecule. (A) 1 Sigma g+ → 3 Sigma g+ (B) 1 Sigma u+ → 1 Sigma g+ (C) 1 Delta u →… · Electron Transfer Redox
ABC26IN0999 · The electronic spectrum of [CrF6]3- shows three bands at 14,900 cm-1, 22400 cm-1 and 34,800 cm-1. The value of Delta o in this case is: · Electron Transfer Redox
ABC26IN1000 · A true statement about base hydrolysis of [Co (NH3)5 Cl]2+ is: · Reaction Mechanisms Substitution
ABC26IN1002 · For the following outer sphere electron transfer reactions. [Co (NH3)6]2++ [Co* (NH3)6]3+ → [Co (NH3)6]3++ [Co* (NH3)6]2+ [Ru (NH3)6]2++… · Electron Transfer Redox
ABC26IN1003 · The coordination number and geometry of cerium in [Ce (NO3)6]2- are respectively, · Coordination Chemistry – General
ABC26IN1156 · In the 19 F NMR spectrum of PF5, the number of signals and multiplicity, at room temperature are · Inorganic Spectroscopy – General
ABC26IN1199 · The actual magnetic moment shows a large deviation from the spin-only formula in the case of · Lanthanides & Actinides – General
ABC26IN1233 · The correct statement regarding closo-{BnHn} species is: · Boranes Carboranes
ABC26IN1234 · Lewis acidity of BCl3, BPh3 and BMe3 with respect to pyridine follows the order · Main Group Elements – General
ABC26IN1235 · Among the following pairs (1) oxygen-sulfur (2) nitrogen-phosphorus (3) phosphorus arsenic (4) chlorine-iodine Those in which the first… · Main Group Elements – General
ABC26IN1236 · The reaction between NH4 Br and Na metal in liquid ammonia (solvent) results in the products · Main Group Elements – General
ABC26IN1237 · The material that exhibits the highest electrical conductivity among the following sulfur - nitrogen compounds is · Phosphazenes Sn Compounds
ABC26IN1238 · The final product (s) of the reaction P(OR)3+R′ X is/are · Main Group Elements – General