97 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0010 · The compound that gives a basic solution in HF is : · Acid and Bases – General
ABC26OR0048 · The IUPAC name of the following compound is · Nomenclature Polycyclics
ABC26OR0049 · The most stable conformation for the following compound is · Conformational Analysis
ABC26OR0108 · The correct match of natural products in Column-I with their biosynthetic precursors in Column-II is Column-I A. B. Column-II I. L-Lysine… · Natural Products – General
ABC26OR0109 · Among the following, the natural product that is a steroid and contains an alpha , beta -unsaturated ketone is · Alkaloids
ABC26OR0110 · The major product formed in the reaction of D-glucose with ZnCl2 in MeOH is a methyl glucopyranoside (A or B). The structure of this… · Carbohydrates
ABC26OR0130 · 13 C NMR spectrum of DMSO- d6 gives a signal at delta 39.7 ppm as a · NMR 1H
ABC26OR0131 · The correct structure of the compound based on the following characteristic spectral data is IR: 1736\,cm-1 1H NMR: delta 3.59 (s, 3H)… · Combined Structure Elucidation
ABC26OR0165 · The major product formed in the following reaction is: reflux · Photochemical Reactions – General
ABC26OR0329 · The major product of the following reaction is · Named Reactions
ABC26OR0330 · The major product formed in the sodium ethoxide mediated reaction between benzophenone and chloroacetate is · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0331 · The major products A and B in the following reaction sequence are: · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0332 · The intermediate A and product B formed in the following sequence are: · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0333 · The major products A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0334 · The major products A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0335 · The major product of the following reaction is 2. · Named Reactions
ABC26OR0336 · The correct combination of reagents to effect the following reaction is: · Named Reactions
ABC26OR0337 · The major products A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0338 · The correct combination of reagents A and B to effect the following transformations are <- B <- -- A --> · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0339 · (being typed) · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0340 · The major products A and B formed in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0341 · The major product formed in the following reaction is i) Mg, ii) CO2, iii) H3O+ ii) COCl2 iii) Et3N · Named Reactions
ABC26OR0342 · The intermediate A and the major product B formed in the following reaction is · Named Reactions
ABC26OR0343 · The major product formed in the following reaction is · Named Reactions
ABC26OR0344 · The major product formed in the following reaction is · Named Reactions
ABC26PH0010 · for the electronic configuration 1 s2 2 s1 2 p4 two of the possible term symbols are 1 S and 3 P. the remaining term is · Term Symbols Atoms
ABC26PH0068 · A solution of Fe3+ is titrated potentiometrically using Ce3+ solution at 25\,. The emf (in V) of the redox system thus formed when, (i)… · Nernst Cells
ABC26PH0069 · The standard cell potential of cell, Pt\,|\,H2(g)\,|\,HBr(aq)\,|\,AgBr(s)\,|\,Ag(s), was measured over a range of temperatures, and the… · Electrochemistry – General
ABC26PH0116 · The v=0 to 1 vibration-rotation spectrum of a diatomic molecule exhibits transitions for R(0), R1, P(1) and P(2) lines at 2241, 2254, 2216… · Vibrational
ABC26PH0117 · For a certain magnetic field strength, a free proton spin transition occurs at 700 MHz. Keeping the magnetic field strength constant the… · Molecular Spectroscopy – General
ABC26PH0243 · The correct statement for any cyclic thermodynamic process is · Thermodynamics – General
ABC26IN0812 · The compound that gives a basic solution in HF is : · Acids & Bases – General
ABC26IN0813 · Match items in column A with items in column B: · Acids & Bases – General
ABC26IN0835 · Identify the correct statement(s) for phosphorimetric measurement from the following: A. It is done after a time delay when fluorescence… · Analytical Chemistry – General
ABC26IN0836 · Identify correct statements from the following: A. Area of differential thermal analysis peak is proportional to amount of sample. B. Area… · Analytical Chemistry – General
ABC26IN0895 · The resonance Raman stretching frequencies (in cm-1) of the bound O2 species in oxyhemerthyrin and oxy-hemoglobin, respectively, are · Oxygen Carriers Hemoglobin
ABC26IN0896 · In vitro reaction of an excess of O2 with free heme B in aqueous medium the end product is · Bioinorganic Chemistry – General
ABC26IN0897 · Consider the following statements for metallothioneins: A. the contain about 30% cysteine residues B. they prefer to bind soft metal ions… · Iron Sulfur Proteins
ABC26IN0898 · Consider the following statements for deoxy-hemerythrin and deoxy-hemocyanin: A. they are involved in O2 transport in biological systems B… · Metal Toxicity Medicine
ABC26IN0960 · Based on VSEPR theory, the predicted shapes of [XeF5 ]-and BrF5 respectively, are · MO Theory Diatomics
ABC26IN1096 · CdS, HgS and BiI3 are coloured due to · Electron Transfer Redox
ABC26IN1097 · The relative rates of water exchange for the hydrated complexes of (1) Ni2+ (2) V2+ and (3) Cr3+ ions follows the trend: · Coordination Chemistry – General
ABC26IN1098 · Consider the following sulfur donor atom bearing bidentate ligand where X and name of ligands are given in following columns Correct match… · Molecular Orbital Ligand Field
ABC26IN1099 · A copper (II) complex having distorted octahedral geometry shows an absorption band at 625 nm. Given spin-orbit coupling of the complex as… · Coordination Chemistry – General
ABC26IN1100 · Consider the following statements for octahedral complexes. (a) [CrF6 ]3- (b) [Cr(ox)3 ]3- and (c) [Cr(en)3 ]3+ A. their d d transitions… · Jahn Teller
ABC26IN1101 · Match the items in the three columns. The correct answer is · Coordination Chemistry – General
ABC26IN1185 · Mössbauer spectrum of complex [Fe(1,10-phenanthroline)2(NCS)2] shows two lines at 300 K, four lines at 186 K, and again two lines at 77 K… · Inorganic Spectroscopy – General
ABC26IN1186 · (R3Ge)2 on photolysis gives a radical which shows ESR spectrum. The ESR signals carrying the signature of 73Ge\ (I=9/2) are in terms of · Inorganic Spectroscopy – General
ABC26IN1187 · The 31P(1H) NMR spectrum of 2,2,6,6-N4P4Cl4(NMe2)4 is expected to show · Inorganic Spectroscopy – General
ABC26IN1217 · Which one of the following pairs has two magic numbers for closed nuclear shells? · Lanthanides & Actinides – General