84 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0028 · The gas commonly used in generating plasma in Inductively Coupled Plasma Atomic Emission Spectroscopy (ICPAES) is: · Analytical Chemistry – General
ABC26OR0030 · The compound that is antiaromatic is (I) (II) (III) (IV) · Aromaticity
ABC26OR0031 · The increasing order of pKa values of the circled hydrogens in the following compounds is (I) (II) (III) · Acidity Basicity
ABC26OR0098 · The biosynthetic precursor of abietic acid is · Natural Products – General
ABC26OR0099 · The amino acid constituents of artificial sweetener given below are · Amino Acids Peptides
ABC26OR0128 · The mass of metastable ion produced due to decomposition of F1^+ in the following mass fragmentation sequence is Diethyl-phthalate (M +… · Mass Spec
ABC26OR0150 · The major product of the following reaction is · Pericyclic Reactions – General
ABC26OR0239 · The major product formed in the following reaction sequence is: 1. Me2C(OMe)2, TsOH (cat.) 2. BH3, THF 3. H3O+ · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0241 · The major product formed in the following reaction is: 1. H3O+, h nu 2. NaOH · Named Reactions
ABC26OR0243 · The products A and B in the following reaction sequence are: LDA A [CuCl, DMF-H2O]PdCl2, O2 B [2. H3O^+]1. NaOEt · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0244 · The products A and B in the following reaction sequence are: A [THF, EtOH]SmI2 B · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0248 · The major product of the following reaction is: · Named Reactions
ABC26OR0250 · The major product of the following reaction is: 1. Methoxybenzaldehyde, H+ 2. DIBAL-H, -78 to 40°C · Named Reactions
ABC26OR0251 · The major product of the following reaction is: 1. Zn, AcOH · Named Reactions
ABC26OR0253 · The products A and B in the following reaction sequence are 2. ICH2CH2CH2Cl A [2. H3O+]1. MeMgBr, Et2O B · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26PH0030 · 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, then the… · Enzyme Kinetics
ABC26PH0031 · 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
ABC26PH0032 · The rate constant for a reaction A++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
ABC26PH0081 · 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
ABC26PH0097 · Identify the speed distribution functions of Ne, Ar, and Kr with the curves in the figure below · Gaseous State – General
ABC26PH0123 · For a polydispersed macromolecular colloid, osmometry gives · Molecular Weight Averages
ABC26PH0124 · 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
ABC26PH0203 · When T → ∞, value of the single-particle partition function will be (given : degeneracy of level j = gj) : · Partition Functions
ABC26PH0204 · The probability of finding the harmonic oscillator in the energy level n=1 is (neglect zero point energy and assume h nu =kBT) · Statistical Thermodynamics – General
ABC26PH0205 · Identify the speed distribution functions of Ne, Ar and Kr with the curves in the figure above: · Statistical Thermodynamics – General
ABC26PH0236 · The exact differential df of a state function f(x, y), among the following is · Laws State Functions
ABC26IN0844 · The gas commonly used in generating plasma in Inductively Coupled Plasma Atomic Emission Spectroscopy (ICPAES) is: · Analytical Chemistry – General
ABC26IN0874 · The extent of pi -electron conjugation in macrocyclic rings of (1) heme, (2) coenzyme B12 and (3) chlorophyll follows the order · Bioinorganic Chemistry – General
ABC26IN0875 · The number of histidine amino acid nitrogen atoms coordinated to bimetallic active site of oxyhemocyanin, and oxyhemerythrin, respectively… · Nitrogen Fixation
ABC26IN0876 · Identify correct statements for mercury as an environment pollutant. A. Carbanionicbiomethylation converts it to MeHg+ B. Thiol group of… · Iron Sulfur Proteins
ABC26IN0877 · Under physiological condition, oxygen is binding to deoxyhemoglobin and deoxymyoglobin, the binding curve and its pH dependence… · Oxygen Carriers Hemoglobin
ABC26IN0878 · Match the metalloproteins in Column-A with their function in Column-B The correct answer is · Iron Sulfur Proteins
ABC26IN1048 · The S and L values for 15N atom respectively, are · Coordination Chemistry – General
ABC26IN1049 · In the following reaction [PtCl4]2-+NO2-, is → A+NH3 → B, compound B is · Reaction Mechanisms Substitution
ABC26IN1051 · An aqueous solution of [Mn (H2 O)6]2+ complex is pale pink in colour. The probable reasons for it are (A) Presence of 6A1g ground state (B)… · Charge Transfer Spectra
ABC26IN1052 · Base hydrolysis of [CoCl (NH3)5]2+ is an overall second order reaction, whereas that of [Co(CN)]3- is of first order. The rates depend in… · Reaction Mechanisms Substitution
ABC26IN1053 · The configuration [Ne] 2p13p1 has a 3D term. Its levels are · Term Symbols Spectra
ABC26IN1054 · The spin-only magnetic moment and the spectroscopic ground state term symbol of manganese center in [MnF6]3- ion respectively, are · Term Symbols Spectra
ABC26IN1055 · The three dimensional structure of compound [Co (Co (NH3)4(OH)2)3] Br6, has · Coordination Chemistry – General
ABC26IN1056 · The spin-only and spin plus orbital magnetic moments of [CrCl6]-3 are · Molecular Orbital Ligand Field
ABC26IN1174 · EPR spectrum of a free radical containing nuclei with nonzero nuclear spin is obtained if the following selection rules are observed- · Inorganic Spectroscopy – General
ABC26IN1209 · The correct order of the retention of cations on a sulfonated cation exchange resin column is · Lanthanides & Actinides – General
ABC26IN1210 · Hindered beta -diketonates like dpmH(dpmH= dipivaloylmethane) are used for the separation of lanthanides because complexes formed with dpmH… · Lanthanides & Actinides – General
ABC26IN1273 · The reaction between SbF5 and two equivalents of HF leads to the formation of · Main Group Elements – General
ABC26IN1274 · Among F-, Na+, O2- and Mg2+ ions, those having the highest and the lowest ionic radii respectively are · Main Group Elements – General
ABC26IN1276 · A borane (X) is reacted with ammonia to give a salt of borohydride (Y). The 11B NMR spectrum of Y consists of a triplet and a quintet. The… · Main Group Elements – General
ABC26IN1277 · 12-Crown-4 binds with the alkali metal ions in the following order : Li+ Na+>K+>Cs+. It is due to the · Main Group Elements – General
ABC26IN1278 · The main products of the reaction of equimolar quantities of XeF6 with NaNO3 are · Main Group Elements – General
ABC26IN1396 · The hepticities 'x' and 'y' of the arene moieties in the diamagnetic complex [ (eta x-C6 H6) Ru (eta y-C6 H6)] respectively are · Metallocenes Cp Arene
ABC26IN1397 · The rate of the reaction Ni(CO)4+PPh3 Delta [Ni(CO)3 (PPh3)]+CO depends on · Cluster Compounds Wade Rules