126 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0987 · Consider two redox pairs: (1) Cr(II)/Ru(III) (2) Cr(II)/Co(III) The rate of acceleration in going from a outer-sphere to a inner-sphere… · Electron Transfer Redox
ABC26IN0988 · The complex [Mn(H2O)6]+2 has very light pink colour. The best reason for it is · Charge Transfer Spectra
ABC26IN0989 · The correct order of LMCT energies is: · Coordination Chemistry – General
ABC26IN0990 · For the complexes (A) [Ni(H2O)6]2+ (B) [Mn(H2O)6]2+ (C) [Cr(H2O)6]3+ (D) [Ti(H2O)6]3+ the ideal octahedral geometry will not be observed in · Coordination Chemistry – General
ABC26IN0991 · The possible J values for 3D term symbol are · Term Symbols Spectra
ABC26IN0992 · Which of the following compound show a charge-transfer band? · Charge Transfer Spectra
ABC26IN0993 · Cis and trans complexes of the type [PtA2X2] are distinguished by · Coordination Chemistry – General
ABC26IN1153 · In the EPR spectrum of tetragonal Cu(II) complex, when g∥ > g⊥ > ge, the unpaired electron resides in the orbital. · Inorganic Spectroscopy – General
ABC26IN1154 · Consider the compounds, (A) SnF4(B) SnCl4 and (C) R3 SnCl. The nuclear quadrupole splitting are observed for. · Inorganic Spectroscopy – General
ABC26IN1155 · The correct value of isomer shift (in Mossbauer spectra) and its explanation for Fe(II)-TPP and Fe(III)-TPP respectively from the following… · Mossbauer
ABC26IN1196 · Among the following statements, identify the correct ones for complexes of lanthanide (III) ion. (A) Metal-ligand bond is significantly… · Lanthanides & Actinides – General
ABC26IN1197 · Statement I: The sizes of Zr and Hf are similar Statement II: Size of Hf is affected by lanthanide contraction. · Lanthanides & Actinides – General
ABC26IN1198 · The electronic configuration for gadalonium (Gd) is [Xe]4f7 5d1 6s2, where as that of Gd2+ is: · Lanthanides & Actinides – General
ABC26IN1229 · The correct order of stability of difluorides is: · Main Group Elements – General
ABC26IN1230 · Alkali metal superoxides are obtained by the reaction of · Main Group Elements – General
ABC26IN1231 · Match List-I (compounds) with List-II (application) and select the correct answer using the codes given below the lists. · Phosphazenes Sn Compounds
ABC26IN1327 · Consider the nuclear reaction 92 X234+ beta + alpha → Y+ gamma +2 beta + Y is · Nuclear Reactions Q Value
ABC26IN1341 · The species 19 Ne and 14 C emit a positron and beta -particle respectively. The resulting species formed are respectively · Nuclear Reactions Q Value
ABC26IN1343 · Identify the order according to increasing stability of the following organometallic TiMe4, Ti (CH2 Ph)4, Ti(i-Pr)4, and TiEt4(Me= methyl… · Metal Carbonyls
ABC26IN1344 · Oxidation occurs very easily in case of · Organometallic Compounds – General
ABC26IN1346 · In the H2 Ru6(CO)18 cluster, containing 8-coordinated Ru centers, the hydrogen atoms are · Cluster Compounds Wade Rules
ABC26IN1347 · In the hydroformylation reaction, the intermediate CH3CH2CH2Co(CO)4 : · Organometallic Compounds – General
ABC26OR0940 · The absorption at lambda max =279 nm (varepsilon =15) in the UV spectrum of acetone is due to · Organic Spectroscopy – General
ABC26OR0941 · In the broad band decoupled 13C NMR spectrum, the numbers of signals apperating for the bicyclooctane A-C, respectively are (A) (B) (C) · NMR 13C
ABC26OR0942 · In the mass spectrum of dichlorobenzene the ratio of the peaks at m/z 146, 148 and 150, is: · Mass Spec
ABC26OR0944 · An organic compound A (C8 H16 O2) on treatment with an excess of methyl-magnesium chloride generated two alcohols B and C, whereas reaction… · NMR 1H
ABC26OR1014 · The reaction given below is an example of Delta · Sigmatropic Shifts
ABC26OR1015 · The concerted photochemcial reaction between two olefins leading to a cyclobutane ring is : · Cycloaddition Diels Alder
ABC26OR1016 · The structures of the major products X and Y in the following transformation are + Delta X h nu Y · Pericyclic Reactions – General
ABC26OR1067 · The intermediate involved in the reaction given below is : · Photochemical Reactions – General
ABC26OR1068 · The concerted photochemical reaction between two olefins leading to a cyclobutance ring is : · Photocycloaddition
ABC26PH0867 · For an assembly of molecules (molar mass = M) at temperature T, the standard deviation of Maxweller's speed is approximately · Atomic And Molecular Term Symbols – General
ABC26PH0881 · The half-life of a zero order reaction (A → P) is given by (k= rate constant): · Rate Laws Order
ABC26PH0882 · The decomposition of gaseous acetaldehyde at T(K) follows second order kinetics. The half-life of this reaction is 400 s when the initial… · Rate Laws Order
ABC26PH0883 · For an enzyme catalyzed reaction, a Lineweaver-Burk plot gave the following data: slope = 40 s, intercept = 4 (mmol dm-3 s-1)-1. If the… · Enzyme Kinetics
ABC26PH0884 · Observe the following aqueous solutions of same compound. All the measurements are made at same wavelength and same temperature. Solution… · Chemical Kinetics – General
ABC26PH0968 · 1.0 ohm-1 dm2 mol-1, respectively, the solubility (in g L-1) of the salt in water at 25°C is · Debye Huckel
ABC26PH0970 · If the ratio of composition of oxidized and reduced species in electrochemical cell, is given as ([0])/([R])=e2 the correct potential… · Electrochemistry – General
ABC26PH1042 · Given the character table of the point group C3 V Consider the reducible representation, Gamma Its irreducible components are · Reducible Representations
ABC26PH1043 · Refer to the character table of the point group C3v given above. Find which of the following transition is forbidden · Character Tables
ABC26PH1044 · The symmetry point group of ethane in its staggered conformation is · Symmetry Elements Point Groups
ABC26PH1046 · Among the following, the CORRECT statement is: · Symmetry Elements Point Groups
ABC26PH1047 · A square pyramidal, MX4, molecule belongs to C4v point group. The symmetry operations are: E, 2C4, C2, 2 sigma v and 2 sigma d. The trace… · Symmetry Elements Point Groups
ABC26PH1048 · Character table of C2v point group is: If the initial and final states belong to A1 and B1 irreducible representation respectively, the… · Character Tables
ABC26PH1049 · The molecular that has an S6 symmetry element is · Symmetry Elements Point Groups
ABC26PH1050 · The number of IR active vibrational modes of pyridine is: · Applications To Spectroscopy
ABC26PH1051 · A molecules contains the following symmetry operations: E, 2C6, 2C3, C2, 3 sigma d, 3 sigma v. The number of classes and order of the… · Symmetry Elements Point Groups
ABC26PH1053 · Identify the point group symmetry of the following molecule (all C-C bond lengths are equal) · Symmetry Elements Point Groups
ABC26PH1054 · The transition that is allowed by x-polarized light in trans-butadiene is (The character table for C2h is given below) · Character Tables
ABC26PH1055 · The symmetry point group of propyne is · Symmetry Elements Point Groups