85 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0012 · Consider compounds PF5, SbF5, PH3 and SbH3. The strongest acid and the strongest base among these are, respectively · Acid and Bases – General
ABC26OR0059 · Oxidation of A with HNO3 / H2 O provides the product (s), which is (are) A · Stereochemistry R S E Z
ABC26OR0060 · Among the following, the optically active compound is · Stereochemistry R S E Z
ABC26OR0116 · The keto-hexose among the following is · Natural Products – General
ABC26OR0136 · In the 31 P \ 1 H \ NMR spectrum of a diamagnetic complex m e r- [M (PR3 )3 Cl3 ] expected number of resonance is · Organic Spectroscopy – General
ABC26OR0137 · The compound P undergoes a pericyclic reaction under photochemical conditions to give compound Q. In compound Q, the relative… · NMR 1H
ABC26OR0375 · The major product formed in the following reaction is · Named Reactions
ABC26OR0376 · Among the following, reaction(s) which provide(s) I-butene as the major product is (are)- · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0377 · The major product formed in the following reaction is- · Named Reactions
ABC26OR0379 · The mechanism of acid catalysed hydrolysis of benzonitrile involves- · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0380 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0381 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0382 · Correct sequence of reagents to be used for the following conversion is- · Reduction Reagents
ABC26OR0383 · (being typed) · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0384 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0385 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0386 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0387 · The correct sequence of reagents to be used for the following conversion is- · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0388 · Both 1-chloro-1-phenylpropan-2-one and 1-chloro-3-phenylpropan-2-one give same product A when heated in presence of NaOMe. The product A is · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0389 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0390 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0391 · The structures of products A and B formed in the Edman degradation of dipeptide are- · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0392 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0393 · The major products A and B in the following reaction sequence are- · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0394 · The major products A and B in the following reaction sequence are- · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26PH0070 · The correct statement among the following is · Electrochemistry – General
ABC26PH0071 · The standard free energy of the reaction AgBr(s) Ag+(a q)+Br-(a q) Is closest to. [Eo (AgBr / Ag, Br- )=0.07 V ; Eo (Ag / Ag+ )=0.80 V… · Electrochemistry – General
ABC26PH0072 · Conductivities of water and a saturated solution of a sparingly soluble salt AB2 are 7 and 21\, mu S\,m-1, respectively. Given, lambda… · Electrochemistry – General
ABC26PH0073 · The equilibrium constant of the following reaction: Sn(s)+Sn4+(aq) 2Sn2+(aq) At 300\,K is closest to, (Given, Eo_Sn4+/Sn2+=0.15\,V and… · Electrochemistry – General
ABC26PH0087 · N2 O molecule belongs to the point group · Symmetry Elements Point Groups
ABC26PH0088 · The -orbital of ethylene, when placed in the xy-plane with the C=C bond aligned to the x-axis, transforms according to the irreducible… · Character Tables
ABC26PH0099 · Root mean square speed of the molecules of a perfect gas is proportional to · Maxwell Distribution
ABC26PH0100 · Entropy of a perfect gas is · Kinetic Theory of Gasses – General
ABC26PH0208 · The translational partition function for Ar confined to a volume of 1L at 300K, having thermal wavelength of 1.60 10-11 m, is closest to : · Partition Functions
ABC26PH0248 · Entropy of a perfect gas is · Laws State Functions
ABC26IN0816 · Consider compounds PF5, SbF5, PH3 and SbH3. The strongest acid and the strongest base among these are, respectively · Acids & Bases – General
ABC26IN0830 · Match the items of Column I with those of Column II. · Chromatography
ABC26IN0905 · The chelate rings made by macrocyclic ligand in vitamin B12 are · Bioinorganic Chemistry – General
ABC26IN0906 · Match the items given below in the three columns: Correct matches: · Metal Toxicity Medicine
ABC26IN0969 · Among SiCl4, P(O) Cl3, NF3, trans- [SnCl4(py)2 ] (py-pyridine), those with zero dipole moment are · Dipole Moment Polarity
ABC26IN0970 · The characters of LUMO and CN-and O2 respectively, are · Chemical Bonding – General
ABC26IN0971 · Arrange the following molecules in order of increasing fundamental vibrational frequencies · Chemical Bonding – General
ABC26IN1116 · Consider the species NO, I2, I2-, Cu2+ and VO2+. The number of paramagnetic species among them and the EPR inactive species, respectively… · Coordination Chemistry – General
ABC26IN1117 · The intermediate [Fe(SCN) (H2 O )5 ]2+ is detected in the reaction of [Co(NCS) (NH3 )5 ]2+ with [Fe (H2 O )6 ]2+ in aqueous medium to… · Electron Transfer Redox
ABC26IN1118 · For magnesium complex of EDTA2-, the number of N -donor and O -donor centers, are respectively. · Coordination Chemistry – General
ABC26IN1119 · The correct set of electronic configurations for metal ions in octahedral coordination geometry for strong Jahn-Teller distortion is · Jahn Teller
ABC26IN1120 · The correct order of intensity of the d-d transitions in the complexes of a 3d-transition metal ion · Coordination Chemistry – General
ABC26IN1121 · The isomers A and B undergo base hydrolysis by forming a trigonal bipyramidal Intermediate. The correct statement is (A) · Term Symbols Spectra
ABC26IN1122 · Consider the two sets of molecules. Set A: [AlF6 ]3-, [PF6 ]-, [SF6 ] and [SiF6 ]2- Set B: [Ba (H2 O )6 ]2+, [Ca (H2 O )6 ]2+, [Mg (H2 O )6… · Molecular Orbital Ligand Field