79 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN1329 · In neutron activation analysis the radiation commonly detected is · Nuclear Chemistry – General
ABC26IN1483 · The number of Ni-Ni bonds in [CpNi (mu -PPh2)]2 complex obeying the 18 electron rule is · 18 Electron Rule
ABC26IN1484 · For the reaction of trans- [IrX(CO)(PPh3)2] (X=F, Cl, Br, I) with O2, correct order of variation of rate with X is · Organometallic Compounds – General
ABC26IN1485 · The organic species isolobal to [Fe(CO)2 (PPh3)]-is · Organometallic Compounds – General
ABC26IN1486 · The correct statements about [Ru6 C(CO)17] cluster from the following (1) it is an 86 electron cluster (2) it is a closo structure type (3)… · 18 Electron Rule
ABC26IN1487 · A plausible structure of the intermediate involved in the following reaction [Fe(eta 5-C5H5)(CH3)(CO)2] + PPh3 → [Fe(eta… · Organometallic Compounds – General
ABC26IN1489 · Considering sigma -bonding only, in the MO diagram of a metal complex with trigonal bipyramidal (TBP) geometry, the d-orbitals which remain… · Metal Carbonyls
ABC26OR0999 · The number of 1H NMR signals observed for the following compound is · Organic Spectroscopy – General
ABC26PH0951 · If the half-life of a reaction is inversely proportional to the square of the concentration of the reactant, the order of the reaction is · Rate Laws Order
ABC26PH0967 · A physical observable, 'x', appears with the probability distribution e(-|2x-12|) the average of x would be · Data Analysis – General
ABC26PH1019 · The mobility of a divalent cation in water is 8×10-8m2V-1s-1. The effective radius of the ion is (viscosity of water =1cP; e=1.6×10-19C) · Electrochemistry – General
ABC26PH1020 · If the over potential of an electrolysis process is increased from 0.5V to 0.6V, then the ratio of current densities (ln J0.6/J0.5) of the… · Electrochemistry – General
ABC26PH1082 · The pi -orbital p1 + p2 - p3 - p4 of cis-butadiene belongs to the irreducible representation · Character Tables
ABC26PH1142 · The correct statements about HCl and DCl, among the following is · Molecular Spectroscopy – General
ABC26PH1143 · The Berge-Sponer plot between Delta Gv+1/2= (varepsilon v+1- varepsilon v) and v+1 for CO in a straight line with slope of -14 cm-1 and… · Vibrational
ABC26PH1195 · The degree of polymerisation () and the fraction of monomer consumed (P) for apolymerization reaction are related as · Polymerisation Kinetics
ABC26PH1196 · The reaction rate of a self-catalyzed polyesterification reaction is given as -(d[COOH])/dt=k[COOH]2[OH] If [M] is the initial… · Polymerisation Kinetics
ABC26PH1360 · The correct relationship among the following, for a tetragonal (a=b ≠ c, alpha = beta = gamma =90°) crystal system, is · Crystal Systems Lattices
ABC26PH1361 · Nearest neighbour distance in a crystal system of side length a is a/(√(2)) in · Crystal Systems Lattices
ABC26PH1368 · A certain system of non interacting particles has the single-particle partition function f = A(Tm)/V where A is some constant. The average… · Partition Functions
ABC26PH1404 · The rotational partition function is expected to be the smallest for the molecule, among the following · Partition Functions
ABC26PH1405 · For a linear molecule the mean energies for translation, rotation (T theta r) and vibration (T theta v) follow ratio: · Statistical Thermodynamics – General
ABC26PH1407 · The difference between standard molar entropies of two mono-atomic gases (A) and (B) (Sm,A0-Sm,B0) at a given temperature is (given that… · Statistical Thermodynamics – General
ABC26PH1437 · Above the critical micelle concentration (CMC), the option which correctly describes the variation of molar conductivity with increase in… · Colloids Micelles
ABC26PH1511 · One mole of a mono-atomic ideal gas is transformed from 300 K and 2 atm to 600 K and 4 atm. The entropy change for this process is · Laws State Functions
ABC26PH1512 · A non-ideal gas, follows the equation P=R T/Vm [1+B/Vm] where B is a function of temperature only. The deviation in internal energy from… · Laws State Functions
ABC26PH1513 · When two moles of liquid A are mixed with two moles of liquid B at 300 K, the excess molar Gibbs energy of the solution is -1.5 kJ mol-1… · Free Energy Equilibria
ABC26PH1514 · A sample of 2.0 moles of O2(g) (assumed ideal) at 500 K is expanded from 5 L to 50 L under adiabatic and reversible conditions. The change… · Laws State Functions
ABC26PH1515 · The chemical potential (mu) of a 2 molar Na2SO4 solution is expressed in terms of mean ionic activity co-efficient (gamma _±) as · Partial Molar Quantities