114 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0030 · The use of dynamic inert atmosphere in thermogravimetric analysis (TGA): · Analytical Chemistry – General
ABC26IN0064 · The correct non-linear and iso-structural pair is · Chemical Bonding – General
ABC26OR0097 · Atorvastatin (structure given below) is a · Steroids
ABC26OR0149 · The major product formed in the following reaction is · Pericyclic Reactions – General
ABC26OR0163 · The major product formed in the following photochemical reaction is · Photocycloaddition
ABC26OR0230 · The major products formed in the following are: · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0231 · The major product formed in the following is: · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0232 · Consider the following reaction, · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0233 · The products A and B in the following reaction sequence are: → (B) · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0234 · The products A and B in the following reaction sequence are: B · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0235 · The major products A and B in the following reaction sequence are: A B · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0236 · The major products A and B in the following reaction sequence are: [i-PrOH, Me2NH]aq. NaCN, MnO2 B · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26PH0187 · When Si is doped with a Group V element · Band Theory
ABC26PH0188 · The interplanar spacing of (110) planes in a cubic unit cell with lattice parameter a=4.242 Å is · Crystal Systems Lattices
ABC26PH0202 · The number of configurations in the most probable state, according to Boltzmann formula, is · Statistical Equilibrium
ABC26PH0234 · The figure below represents the path followed by a gas during expansion from A → B. The work done is (L atm) · Thermodynamics – General
ABC26PH0235 · Two phases alpha and beta of a species are in equilibrium. The correct relations observed among the variables, T, p and mu are · Thermodynamics – General
ABC26IN0846 · The use of dynamic inert atmosphere in thermogravimetric analysis (TGA): · Analytical Chemistry – General
ABC26IN0847 · The correct statements for hollow cathode lamp (HCL) from the following are: (A) HCL is suitable for atomic absorption spectroscopy (AAS)… · Analytical Chemistry – General
ABC26IN0870 · If an enzyme fixes N2, in plants by evolving H2, the number of electrons and protons associated with that, respectively are · Bioinorganic Chemistry – General
ABC26IN0871 · Ozone present in upper atmosphere protects people on the earth · Bioinorganic Chemistry – General
ABC26IN0872 · Molybdoenzymes can both oxidize as well as reduce the substrates, because · Zinc Enzymes
ABC26IN0873 · The cooperative binding of O2 in hemoglobin is due to · Oxygen Carriers Hemoglobin
ABC26IN0941 · The correct non-linear and iso-structural pair is · Chemical Bonding – General
ABC26IN0942 · Structures of SbPh5 and PPh5 respectively are · Chemical Bonding – General
ABC26IN0943 · The maximum bond order obtained from the molecular orbitals of a transition metal dimer, formed as linear combinations of d-orbitals alone… · Chemical Bonding – General
ABC26IN0944 · The correct schematic molecular energy diagram for SF6 molecule is: · Hydrogen Bonding Weak Interactions
ABC26IN1037 · In bis(dimethylglyoximato)nickel(II), the number of Ni-N, Ni-O and intramolecular hydrogen bond(s)respectively are · Molecular Orbital Ligand Field
ABC26IN1038 · NiBr2 reacts with (Et) (Ph2) P at -78° C in CS2 to give red compound ' A ', which upon standing at room temperature turns green to give… · Coordination Chemistry – General
ABC26IN1039 · If L is a neutral mono-dentate ligand, the species, [AgL4]2+, [AgL6]2+ and [AgL4]3+ respectively are · Molecular Orbital Ligand Field
ABC26IN1040 · [CoL6]3+ is red in colour whereas [CoL6′]3+ is green. L. and L′ respectively corresponds to, · Coordination Chemistry – General
ABC26IN1041 · In its electronic spectrum, [V (H2 O)6]3+ exihibits two absorption bands, one at 17,800 (v1) and the second at 25, 700 (v2) cm. The correct… · Electron Transfer Redox
ABC26IN1042 · The term symbol that is NOT allowed for the np2 configuration is · Term Symbols Spectra
ABC26IN1043 · Reaction of [Ru (NH3)5(isonicotinamide)]3+ with [Cr (H2 O)6]3+ occurs by inner sphere mechanism and rate of the reaction is determined by… · Reaction Mechanisms Substitution
ABC26IN1044 · Consider the second order rate constants for the following outer-sphere electron transfer [Fe(H2O)6]3+ / [Fe(H2O)6]2+ 4.0 M-1 sec-1… · Electron Transfer Redox
ABC26IN1045 · A 1: 2 mixture of Me2 NCH2 CH2 CH2 PPh2 and KSCN with K2 [PdCl4] gives a square planar complex A. Identify the correct pairs of donor atoms… · Coordination Chemistry – General
ABC26IN1046 · Identify the correct statement about [Ni (H2 O)6]2+ and [Cu (H2 O)6]2+ · Coordination Chemistry – General
ABC26IN1047 · Reaction of nitrosyltetrafluoroborate to Vaska's complex gives complex A with angle M-NO=124°. The complex A and its N-O stretching… · Reaction Mechanisms Substitution
ABC26IN1170 · The 19F NMR spectrum of ClF3 shows · Inorganic Spectroscopy – General
ABC26IN1171 · The low temperature (-98°C) 19F NMR spectrum of SF4, shows doublet of triplets with the point group symmetry. · IR Raman Symmetry
ABC26IN1172 · The correct order of the isomeric shift in Mössbauer spectra (57Fe source) of iron compounds is · Electronic Spectra Tanabe Sugano
ABC26IN1173 · The number of lines in the ESR spectrum of CD3 is (the spin of D is 1) · Inorganic Spectroscopy – General
ABC26IN1208 · A comparison of the valence electron configuration of the elements, Sm and Eu suggests that · Lanthanides & Actinides – General
ABC26IN1269 · Reactions of elemental as with hot and conc. HNO3, and H2 SO4 respectively, give · Main Group Elements – General
ABC26IN1270 · Chromite ore on fusion with sodium carbonate gives · Main Group Elements – General
ABC26IN1271 · The correct order of decreasing electronegativity of the following atoms is, · Main Group Elements – General
ABC26IN1272 · The correct order of the size of S, S2-, S2+ and S4+ species is, · Main Group Elements – General
ABC26IN1335 · The nuclides among the following, capable of undergoing fission by thermal neutrons, are (A) 233U (B) 235U (C) 239Pu (D) 232Th · Fission Fusion
ABC26IN1336 · For a low energy nuclear reaction, 24 Mg(d, alpha)22 Na, the correct statements from the following are · Nuclear Reactions Q Value
ABC26IN1337 · The particles postulated to always accompany the positron emission among are: (A) neutrino (B) anti-neutrino (C) electron · Nuclear Chemistry – General