97 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0004 · Among the following, the correct acid strength trend is represented by · Acid and Bases – General
ABC26IN0005 · Water plays different roles in the following reactions. (i) 2H2O + Ca → Ca2+ + 2OH^- + H2 (ii) nH2O + Cl → [Cl(H2O)n]- (iii) 6H2O + Mg2+ →… · Acid and Bases – General
ABC26IN0063 · The energy of 2s and 2p orbitals is the same for · Chemical Bonding – General
ABC26OR0022 · Amongst the following, the compound which has the lowest energy barrier for the cis-trans isomerisation is: · General Organic Chemistry – General
ABC26OR0023 · The IUPAC name of the compound given below is · Nomenclature Polycyclics
ABC26OR0024 · The two benzylic hydrogens HA and HB in the compounds I and II, are (I) (II) · General Organic Chemistry – General
ABC26OR0026 · The absolute configuration of the two stereogenic (chiral) centres in the following molecule is · Stereochemistry R S E Z
ABC26OR0027 · The correct statement about the following molecule is · Stereochemistry R S E Z
ABC26OR0028 · Consider the following statements about cis- and trans-decalins (A) cis-isomer is more stable than trans-isomer (B) trans-isomer is more… · General Organic Chemistry – General
ABC26OR0029 · The correct order for the rates of electrophilic aromatic substitution of the following compound is (I) (II) (III) · Aromaticity
ABC26OR0092 · For estrone, among the statements A-C, the correct ones are · Steroids
ABC26OR0094 · The major product B formed in the following reaction sequence, and overall yield of its formation are (S)-glutamic acid 180 °C, 60% A 80% B · Natural Products – General
ABC26OR0096 · The peptide A on reaction with 1-fluoro-2, 4-dinitrobenzene followed by exhaustive hydrolysis gave phenylalanine, alanine, serine and N-(2… · Amino Acids Peptides
ABC26OR0127 · In the IR spectrum of p-nitrophenyl acetate, the carbonyl absorption band appears at · IR
ABC26OR0146 · The following reaction proceeds through a Delta · Sigmatropic Shifts
ABC26OR0147 · The number of nodes present in the highest occupied molecular orbital of 1,3,5-hexatriene in its ground state is · Pericyclic Reactions – General
ABC26OR0220 · The major product formed in the following reaction is: + 1. Heat · Named Reactions
ABC26OR0222 · The major product formed in the following reaction is: 1. Hg(OAc)2, H2SO4 · Named Reactions
ABC26OR0224 · The major product formed in the following reaction sequence is: · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0225 · In the following transformation, the reagent A and the major product B, respectively, are A Ac2O/ Delta B · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0227 · The major product formed in the following reaction sequence is: · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0228 · The major product formed in the following reaction sequence is: + · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26PH0026 · According to Arrhenius equation (k = rate constant and T = temperature) · Rate Laws Order
ABC26PH0027 · A first order gaseous reaction is 25% complete in 30 minutes at 227°C and in 10 minutes at 237°C. The activation energy of the reaction is… · Arrhenius Activation
ABC26PH0028 · In the reaction between NO and H2 the following data are obtained Experiment I: PH2 constant Experiment II : PNO = constant The orders with… · Chemical Kinetics – General
ABC26PH0029 · For a first order reaction A → products, the plot of ln (([A]t)/([A]0)) vs time, where [A]0 and [A]t to cocentration at time =0 and t… · Rate Laws Order
ABC26PH0058 · The limiting molar conductivities of NaCl, NaI and RbI are 12.7, 10.8 and 9.1 mS m2 mol-1, respectively. The limiting molar conductivity of… · Conductance
ABC26PH0201 · The number of ways in which four molecules can be distributed in two different energy levels is : · Statistical Thermodynamics – General
ABC26PH0232 · The chemical potential (mu i) of the ith component is defined as · Partial Molar Quantities
ABC26PH0233 · Work (w) involved in isothermal reversible expansion from Vi to Vf of n moles of an ideal gas is · Thermodynamics – General
ABC26IN0804 · Among the following, the correct acid strength trend is represented by · Acids & Bases – General
ABC26IN0848 · In the atomic absorption spectroscopic estimation of Fe(III) using O2 / H2 flame, the absorbance decreases with the addition of · Analytical Chemistry – General
ABC26IN0866 · Patients suffering from Wilson's disease have · Copper Proteins
ABC26IN0867 · High dose of dietary supplement ZnSO4, for the cure of Zn deficiency · Copper Proteins
ABC26IN0868 · L-DOPA is used for treatment of · Bioinorganic Chemistry – General
ABC26IN0869 · Oxidised form of enzyme catalase (structure A); prepared by the reaction of [Fe(P)]^+ (P = porphyrin) with H2O2 has green color because · Iron Sulfur Proteins
ABC26IN1031 · An octahedral metal ion M+2 has magnetic moment of 4.0 B.M. The correct combination of metal ion and d-electron configuration is given by · Electron Transfer Redox
ABC26IN1032 · For an electronic configuration of two non-equivalent pi electronics [ pi 1, pi 1] which of the Following terms is not possible? · Electron Transfer Redox
ABC26IN1033 · Among the following, the correct combination of complex and its color is · Coordination Chemistry – General
ABC26IN1034 · MnCr2 O4 is likely to have a normal spinel structure because · Coordination Chemistry – General
ABC26IN1035 · Compounds K2 Ba [Cu (NO2)6] (A) and Cs2 Ba [Cu (NO2)6] (B) exhibit tetragonal elongation and tetragonal compression, respectively. The… · Electron Transfer Redox
ABC26IN1207 · The ground state forms of Sm and Eu respectively, are · Lanthanides & Actinides – General
ABC26IN1257 · The reaction of FeCl3 · 6 H2 O with SOCl2 yields. · Main Group Elements – General
ABC26IN1258 · Among the molten alkali metals, the example of an immiscible pair (in all proportions)is · Main Group Elements – General
ABC26IN1259 · Treatment of ClF3 with SbF5 leads to the formation of a/an · Ring Cage Cluster
ABC26IN1260 · The reason for the chemical inertness of gaseous nitrogen at room temperature is best given · Main Group Elements – General
ABC26IN1261 · Commonly used scintillator for measuring radiation is · Ring Cage Cluster
ABC26IN1262 · Two tautomeric forms of phosphorus acid are · Main Group Elements – General
ABC26IN1263 · The solid state structure of aluminum fluoride is · Main Group Elements – General
ABC26IN1264 · The orbital interactions shown below represent · Main Group Elements – General