90 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0003 · The compound that will behave as an acid in H2SO4 is · Acid and Bases – General
ABC26IN0059 · Which ones among CO3-2, SO3, XeO3, and NO3-1, have planar structure? · Chemical Bonding – General
ABC26IN0160 · The recoil energy of a Mossabauer nuclide of mass 139 amu is 2.5 MeV. The energy emitted by the nucleus in keV is: · Inorganic Spectroscopy – General
ABC26IN0161 · Find out the number of lines in the 31P NMR signal for diagram · Inorganic Spectroscopy – General
ABC26IN0235 · In hydrofomylation reaction using [Rh(PPh3)2(CO)(H)] as the catalyst, addition of excess PPh3, would · Oxidative Addition Reductive Elimination
ABC26IN0236 · Reactions A and B are, termed as respectively. (A) SnCl2 + Co2(CO)8 → (B) Me2SnCl2 + + 2NaCl · Oxidative Addition Reductive Elimination
ABC26OR0014 · The correct order of acidity of the compounds A-C is: A B C · Acidity Basicity
ABC26OR0015 · The absolute configuration at the two chiral centres of (-)-camphore is: · Stereochemistry R S E Z
ABC26OR0017 · Given the energy of each gauche butane interaction is 0.9 kcal/mol, G value of the following reaction is (e,e conformer) · Conformational Analysis
ABC26OR0078 · Degradation of penicillin G gives penicillamine that can utilize nitrogen, oxygen or sulfur atoms as donors to bind with lead (II), mercury… · Natural Products – General
ABC26OR0079 · The biosynthetic precursor of cadinene is: Cadinene · Natural Products – General
ABC26OR0080 · A tripeptide gives the following products on Edman degradation. + The tripeptide is · Amino Acids Peptides
ABC26OR0123 · In the IR spectrum of p-nitrophenyl acetate, the carbonyl absorption band appears at · IR
ABC26OR0209 · The major product formed in the following reaction is [2. H3O+]1. KH/THF, Delta · Named Reactions
ABC26OR0213 · The major product formed in the following reaction sequence is 1. CHCl3, NaOH · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0214 · The major product B formed in the following reaction sequence is (A) (B) · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0215 · The major product B formed in the following reaction sequence is 1. CH2N2, Et2O (B) · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0216 · The major product formed in the following reaction is: 1. Li, liq. NH3, t-BuOH · Named Reactions
ABC26PH0021 · The decomposition of NH3 on Mo surface follows Langmuir-Hinshelwood mechanism. The decomposition was carried out at low pressures. The… · Rate Laws Order
ABC26PH0022 · In atom recombination reactions · Chemical Kinetics – General
ABC26PH0023 · In the Lindemann mechanism of unimolecular reactions, the observed order at low concentration is: · Chemical Kinetics – General
ABC26PH0025 · The rate equation for the reaction 2AB + B2 → 2AB2 is given by rate = k[AB][B2] A possible mechanism consistent with this rate law is · Rate Laws Order
ABC26PH0054 · The Daniel cell is · Electrochemistry – General
ABC26PH0055 · Kohlrausch's law is applicable to a dilute solution of · Conductance
ABC26PH0056 · The equilibrium constant for an electrochemical reaction, 2 Fe3++Sn2+ ⇌ 2 Fe2++Sn4+ is [Eo_Fe3+/Fe2+=0.75 V, Eo_Sn4+/Sn2+=0.15 V… · Electrochemistry – General
ABC26PH0057 · The potential in Debye-Hückel theory is proportional to · Debye Huckel
ABC26PH0199 · The rotational partition function of H2 is : · Partition Functions
ABC26PH0200 · The equilibrium population ratio (nj / ni) of a doubly-degenerate energy level (Ej) lying at energy 2 units higher than a lower… · Statistical Thermodynamics – General
ABC26PH0229 · For water, Delta Hvap ≈ 41 kJ mol-1. The molar entropy of vaporization at 1 atm pressure is approximately · Laws State Functions
ABC26PH0230 · A carnot takes up 90 J of heat from the source kept at 300K. The correct statement among the following is · Thermodynamics – General
ABC26PH0231 · The internal pressure (∂ U/∂ V)T of a real gas is related to the compressibility factor Z = pV/RT by [where, V is the molar volume] · Thermodynamics – General
ABC26IN0860 · The correct set of the biologically essential elements is, · Bioinorganic Chemistry – General
ABC26IN0861 · Based on the behaviour of the metalloenzymes, consider the following statements (A) In the enzymes, the zinc activates O2, to form peroxide… · Zinc Enzymes
ABC26IN0862 · Fe2+-porphyrins fail to exhibit reversible oxygen transport and cannot differentiate CO from O2. However, the hemoglobin is free from both… · Oxygen Carriers Hemoglobin
ABC26IN0932 · Which ones among CO32-, SO3, XeO3 and NO3-, have planar structure? · Chemical Bonding – General
ABC26IN0933 · When a hydrogen atom is placed in an electric field along the y-axis, the orbital that mixes most with the ground state 1s orbital is · Hydrogen Bonding Weak Interactions
ABC26IN1010 · In [Mo2 (S2)6]2-, cluster the number of bridging S22- and coordination number of Mo respectively, are · Coordination Chemistry – General
ABC26IN1011 · The light pink color of [Co (H2 O)6]2+ and the deep blue color of [CoCl4]2- are due to · Coordination Chemistry – General
ABC26IN1012 · The number of possible isomers of [Ru (PPh3)2(acac)2](acac= acetylacetonate) is: · Coordination Chemistry – General
ABC26IN1013 · The total number of Cu-O bonds present in the crystalline copper(II) acetate monohydrate is: · Crystal Field Theory
ABC26IN1014 · The electric dipole allowed transition in a d2 atomic system is · Coordination Chemistry – General
ABC26IN1015 · Coordination number of " C " in Be2 C3 whose structure is correlated with that of CaF2 is: · Coordination Chemistry – General
ABC26IN1017 · The correct spinel structure of Co3 O4 is: · Coordination Chemistry – General
ABC26IN1018 · The platinum complex of NH3 and Cl- ligands is an anti-tumour agent. The correct isomeric formula of the complex and its precursor are: · Molecular Orbital Ligand Field
ABC26IN1019 · One of the excited states of Ti has the electric configuration [Ar] 4 s2 3 d1 4 p1. The number of microstates with zero total spin (S) for… · Coordination Chemistry – General
ABC26IN1020 · The rate of exchange of OH2 present in the coordination sphere by 18OH2 of, (i) [Cu (OH2)6]2+ (ii) [Mn (OH2)6]2+ (iii) [Fe (OH2)]62+ (iv)… · Coordination Chemistry – General
ABC26IN1162 · The number of lines exhibited by a high resolution EPR spectrum of the species, [Cu(ethylenediamine)2]2+ is [Nuclear spin (I) of Cu=3 / 2… · Inorganic Spectroscopy – General
ABC26IN1163 · The recoil energy of a Mossabauer nuclide of mass 139 amu is 2.5 MeV. The energy emitted by the nucleus in keV is: · Inorganic Spectroscopy – General
ABC26IN1203 · Which one of the following shows the highest solubility in hot concentrated aqueous NaOH ? · Lanthanides & Actinides – General