123 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0009 · For the reaction, HX(aq) + H2O(l) gives H3O^+ + X^- the highest value of [X^-], when X^- is · Acid and Bases – General
ABC26IN0022 · The primary analytical method (not using a reference) is: · Analytical Chemistry – General
ABC26IN0067 · The oxidation state of gold in the following complex is · Chemical Bonding – General
ABC26IN0068 · The numbers of triangular faces in square antiprism, icosahedron and tricapped trigonal prism (capped on square faces), respectively, are · Chemical Bonding – General
ABC26IN0164 · The expected number of 19F NMR spectral lines, including satellites, for [XeF5]^- is [Abundance of 129Xe\,(I=1/2)=26\% ] · Electronic Spectra Tanabe Sugano
ABC26OR0042 · The correct order of the bond dissociation energies for the indicated C-H bond in following compounds is A B C · General Organic Chemistry – General
ABC26OR0043 · The correct order of the acidity for the following compounds is A B C · Acidity Basicity
ABC26OR0044 · The correct statement about the following compound is · Stereochemistry R S E Z
ABC26OR0045 · Methyl groups in the following compound are · General Organic Chemistry – General
ABC26OR0046 · Among the structures given below, the most stable conformation for the following compound is · Conformational Analysis
ABC26OR0047 · Correct match for the products of the reactions in Column A with the properties in Column B is (115) 1. i - P, ii - S, iii - R, iv - Q 2. i… · General Organic Chemistry – General
ABC26OR0106 · Correct characteristics of the functional groups of adenine in DNA base pair are · Natural Products – General
ABC26OR0107 · The correct match for the following is · Steroids
ABC26OR0129 · 1H NMR spectrum of an organic compound recorded on a 500 MHz spectrometer showed a quartet with line positions at 1759, 1753, 1747, 1741… · NMR 1H
ABC26OR0164 · The major product formed in the following reaction is · Photochemical Reactions – General
ABC26OR0308 · The major product formed in the dinitration of 4-bromotoulene is · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0309 · The most stable product formed in the following reaction is · Named Reactions
ABC26OR0319 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0320 · (being typed) · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0321 · Products of the following reaction is: · Named Reactions
ABC26OR0322 · The major product in the following reaction is · Named Reactions
ABC26OR0323 · The major product in the following reaction is 2. i) LDA, THF, -78 °C to r.t. ii) i-Pr-I 3. i) H+, H2O ii) aq. NaOH · Named Reactions
ABC26OR0324 · The major product in the following reaction is i) · Named Reactions
ABC26OR0325 · The correct starting compound A in the following reaction is · Named Reactions
ABC26OR0326 · The major product in the following reaction is · Named Reactions
ABC26OR0327 · The major product in the following reaction is · Named Reactions
ABC26OR0328 · The major product in the following reaction is · Named Reactions
ABC26PH0009 · The highest molecular orbitals for an excited electronic configuration of the oxygen molecule are [1 ]1 [3 ]1. A possible molecular term… · Molecular Term Symbols
ABC26PH0041 · According to the transition state theory, the plot with slope equal to Delta HR is · Chemical Kinetics – General
ABC26PH0042 · A reaction goes through the following elementary steps Assuming that steady state approximation can be applied to C, on doubling the… · Steady State Approximation
ABC26PH0043 · For two reactions arrayll X(g)+Y(g) Z(g) & (1) \\ M(g)+N(g) P(g) & (2) array according to the collision theory, the ratio of squares of… · Arrhenius Activation
ABC26PH0049 · Covariance is defined by the relation Cov(x,y)= xy- x y. Given the arbitrary constants A, B and C, Cov(x,y) will be zero if · Data Analysis – General
ABC26PH0067 · Given (i)\ Zn+4NH3 Zn(NH3)42++2e, Eo=1.03\,V (ii)\ Zn Zn2++2e, Eo=0.763\,V the formation constant of the complex Zn(NH3)42+ is approximately · Electrochemistry – General
ABC26PH0112 · 1H NMR spectrum of an organic compound recorded on a 500 MHz spectrometer showed a quartet with line positions at 1759, 1753, 1747, 1741… · Molecular Spectroscopy – General
ABC26PH0113 · Vibrations of diatomic molecules are usually modelled by a harmonic potential. If the potential is given by x2, the correct statement is · Molecular Spectroscopy – General
ABC26PH0114 · The rotational constant and the fundamental vibrational frequency of HBr are, respectively, 10\,cm-1 and 2000\,cm-1. The corresponding… · Molecular Spectroscopy – General
ABC26PH0115 · In a 200 MHz NMR spectrometer, a molecule shows two doublets separated by 2 ppm. The observed coupling constant is 10 Hz. The separation… · Molecular Spectroscopy – General
ABC26PH0217 · The volume of a gas adsorbed on a solid surface is 10.0 mL, 11.0 mL, 11.2 mL, 14.5 mL and 22.5 mL at 1.0, 2.0, 3.0, 4.0 and 5.0 atm… · Surface Chemistry – General
ABC26PH0220 · Saturation factor in neutron activation analysis is (A= induced radioactivity, = neutron flux, sigma = effective nuclear cross section, N =… · Surface Chemistry – General
ABC26PH0242 · The equation of state for one mole of a gas is given by P(V-b)=RT, where b and R are constants. The value of (( H)/( P) )T is · Thermodynamics – General
ABC26IN0810 · For the reaction, HX(aq)+H2O(l) gives H3O++X- the highest value of [X-], when X- is · Acids & Bases – General