84 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN1398 · The product of the reaction of propene, CO and H2 in the presence of Co2(CO)8 as a catalyst is · Organometallic Compounds – General
ABC26IN1401 · Reductive elimination step in hydrogenation of alkenes by Wilkinson catalyst results in (neglecting solvent in coordination sphere of Rh) · Oxidative Addition Reductive Elimination
ABC26IN1402 · Na [ (eta 5-C5H5)Fe(CO)2] reacts with Br2 to give A. Reaction of A with LiAlH4 results in B. The proton NMR spectrum of B consists of two… · Cluster Compounds Wade Rules
ABC26IN1403 · The compound that undergoes oxidative addition reaction in presence of H2, is · Oxidative Addition Reductive Elimination
ABC26IN1404 · 1H NMR spectrum of free benzene shows a peak at -7.2 ppm. The expected chemical shift (in ppm) of C6H6 ligand in 1H NMR spectrum of [ (eta… · Organometallic Compounds – General
ABC26IN1405 · According to Wade's rule, anion C2 B9 H12 adopts · 18 Electron Rule
ABC26IN1407 · Complexes HM(CO)5 and [ (eta 5-C5 H5) M′(CO)3]2 obey the 18-electron rule. Identify M and M′ and their 1H NMR chemical shifts relative to… · 18 Electron Rule
ABC26OR0968 · The mass of metastable ion produced due to decomposition of F1 + in the following mass fragmentation sequence is Diethyl-phthalate → F1 + →… · Mass Spec
ABC26OR0969 · The ratio of the relative intensities of the carbon signals in the first order 13C NMR spectrum of CD3Cl is · NMR 13C
ABC26OR1036 · The major product of the following reaction is · Pericyclic Reactions – General
ABC26OR1076 · The cyclic product(s) of the following photochemical reaction is(are) · Photocycloaddition
ABC26PH0912 · For an enzyme-substrate reaction, a plot between 1/v and 1/[S0] yields a slope of 40 s. If the enzyme concentration is 2.5 μM, then the… · Enzyme Kinetics
ABC26PH0913 · For a gaseous reaction, 2NO(g) + Cl2(g) → Non-linear T.S. → 2NOCl the pre-exponential factor in the rate constant is proportional to · Arrhenius Activation
ABC26PH0914 · The rate constant for a reaction A3++Bn+1 → P is measured in two different aqueous solutions of ionic strengths 0.01 M and 0.04 M. If log… · Rate Laws Order
ABC26PH0915 · A reaction A + B + C D follows the mechanism A + B ⇌ AB; AB + C → D in which first step remains essentially in equilibrium. If Delta H is… · Arrhenius Activation
ABC26PH0916 · Which of the following will result in deviation from Beer's law ? 1. Change in refractive index or medium. 2. Dissociation of analyte on… · Chemical Kinetics – General
ABC26PH1060 · The character table of C2 v point group is given below. In cis-butadiene molecule the vibrational modes belonging to A2 irreducible… · Character Tables
ABC26PH1061 · The product sigma xy.S4z (S4z is the four fold improper axis of rotation around the z-axis, and sigma xy is the reflection in the xy plane)… · Symmetry Elements Point Groups
ABC26PH1112 · Bond lengths of homonuclear diatomic molecules can be determined with the help of both · Vibrational
ABC26PH1113 · If the component of the orbital angular momentum along the molecular axis of a heteronuclear diatomic molecule is non-zero, the… · Vibrational
ABC26PH1177 · The fraction of groups condensed at time in any stepwise condensation polymerization (overall second order) reaction is · Polymerisation Kinetics
ABC26PH1178 · For a polydispersed macromolecular colloid, osmometry gives · Molecular Weight Averages
ABC26PH1179 · A sample experiment revealed that PVC formed in the medium has (Mn) = 13, and (Mw) = 16, where (Mn) stands for the number average molar… · Molecular Weight Averages
ABC26PH1343 · X-ray diffraction does not give any structural information for · X Ray Diffraction Bragg
ABC26PH1344 · A solid consisting of only X-atoms has a close-packed structure with X-X distance of 160 pm. Assuming it to be a closed packed structure of… · Solid State Chemistry – General
ABC26PH1385 · The low and high temperature limits of vibrational partition function are (theta = h nu /k) : · Partition Functions
ABC26PH1386 · The number of microstates that are possible, when two particles are distributed in four states such that the resulting wave functions are… · Statistical Thermodynamics – General
ABC26PH1387 · When T → ∞, value of the single-particle partition function will be (given : degeneracy of level j = gj) : · Partition Functions
ABC26PH1388 · The probability of finding the harmonic oscillator in the energy level n = 1 is (neglect zero point energy and assume h nu = kBT) · Statistical Equilibrium
ABC26PH1389 · Identify the speed distribution functions of Ne, Ar and Kr with the curves in the figure above: · Statistical Thermodynamics – General
ABC26PH1473 · For a process in a closed system, temperature is equal to · Thermodynamics – General
ABC26PH1474 · The exact differential df of a state function f(x, y), among the following is · Laws State Functions
ABC26PH1475 · Given the following two relations, x1 d mu 1 + x2 d mu 2 = 0 And x1 dV1 + x2 dV2 = 0 for a binary liquid mixture at constant temperature… · Thermodynamics – General
ABC26PH1476 · At high pressure, the fugacity coefficient of a real gas is greater than one, because · Thermodynamics – General