166 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26PH0132 · An operator A is defined as A=-d/d x+x. Which one of the following statements is true? · Postulates Operators
ABC26PH0222 · the amount of energy (in kJ/mol) released during this process is (given: U=235.0439 amu, Ba=141.9164 amu, 91Kr=90.9234 amu, neutron… · Surface Chemistry – General
ABC26PH0223 · arrayl1.1 2.2 3.3 4.4array · Thermodynamics – General
ABC26PH0224 · arrayl2.2 3.3 4.4array · Thermodynamics – General
ABC26IN0799 · The correct order of acidity among the following species is · Acids & Bases – General
ABC26IN0823 · Correct statement for 'Inductively Coupled Plasma Atomic Emission Spectroscopy' is · Analytical Chemistry – General
ABC26IN0824 · Thermometric titration gives best results when A. | Delta H| is high B. Delta G<0 C. Heat of mixing of titrant with titrant is high D… · Analytical Chemistry – General
ABC26IN0849 · The FALSE statement for a polarographic measurement procedure is: · Analytical Chemistry – General
ABC26IN0851 · The ligand system present in vitamin B12 is: · Bioinorganic Chemistry – General
ABC26IN0921 · Among SF4-, BF4-, XeF4, and ICl4-, the number of species having two lone pair of electrons central atom according to VSEPR theory is: · MO Theory Diatomics
ABC26IN0922 · In the molecules H2 O, NH4 and CH4 · Chemical Bonding – General
ABC26IN0923 · According to VSEPR theory, the molecule/ion having ideal tetrahedral shape is · MO Theory Diatomics
ABC26IN0924 · The highest occupied MO in N2 and O2+respectively are (take x -axis as internuclear axis) · Chemical Bonding – General
ABC26IN0925 · The molecule with highest number of lone-pairs and has a linear shape based on VSEPR theory is: · MO Theory Diatomics
ABC26IN0926 · The number of anti-bonding electrons in NO and CO according to MO theory are respectively. · Hydrogen Bonding Weak Interactions
ABC26IN0927 · Among the following pairs, those in which both species have similar structures are: (A) N3-, XeF2 (B) [ICl4]-, [PtCl4]2- (C) [ClF2]+… · Chemical Bonding – General
ABC26IN0928 · Match list I (compounds) with list II (structures), and select the correct answer using the codes given below. · Chemical Bonding – General
ABC26IN0984 · Ni (CN4 )2- and Ni (Cl4 )2- complex ions are : · Coordination Chemistry – General
ABC26IN0985 · According To Crystal Field Theory, Ni2+ can two have unpaired electrons in · Crystal Field Theory
ABC26IN0986 · The term symbol of a molecule with electronic configuration: (1)2(1)2(2)2(2)2(1)1(1)1 is: · Electron Transfer Redox
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… · 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 [PtA2 X2 ] are distinguished by · Coordination Chemistry – General
ABC26IN0994 · The number of possible isomers for [Ru(bpy)2 Cl2 ] is ( bpy=2,2 '- bipyridine) d-cis-form · 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. arrayl (A) Metal-ligand bond is… · 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
ABC26IN1232 · Among the following, the number of anhydrides of acids are CO, NO, N2 O3, B2 O3, N2 O5, SO3 and P4 O10 · Hydrides
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
ABC26IN1342 · The oxidative addition and reductive elimination steps are favoured by · Oxidative Addition Reductive Elimination
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
ABC26IN1348 · In Ziegler-Natta catalysis the commonly used catalyst system is: · Homogeneous Catalysis
ABC26OR0940 · The absorption at _ max =279 nm(=15) in the UV spectrum of acetone is due to · Organic Spectroscopy – General
ABC26OR0941 · In the broad band decoupled 13 C 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
ABC26OR0943 · The major compound X formed in the following reaction exhibited a strong absorption at v_ m a x =1765 cm-1 in the IR spectrum. The… · IR