89 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0006 · Which of the following react(s) with AsF5 in liquid BrF3 ? · Acid and Bases – General
ABC26IN0007 · Consider the following reactions: (A) NOCl + Sn N2O4 (B) NOCl + AgNO3 → (C) NOCl + BrF3 → (D) NOCl + SbCl5 → Reactions which will give… · Acid and Bases – General
ABC26IN0023 · Decomposition temperature of CaCO3 in thermogravimetric analysis will be highest in dynamic atmosphere of: · Analytical Chemistry – General
ABC26IN0163 · Identify correct statements for the EPR spectrum of VO(acac)2 [with square pyramidal geometry at vanadium] at 77K [I(51V) = 7/2] (A) It has… · Inorganic Spectroscopy – General
ABC26OR0153 · The major products A and B formed in the following reaction sequence are + heat (A) h nu (B) · Pericyclic Reactions – General
ABC26OR0287 · The major product formed in the following reaction is: EtOH · Named Reactions
ABC26OR0290 · The major product formed in the following reaction sequence is: 3. H3O+ · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0296 · The correct reagent combination to effect the following reaction is: → · Named Reactions
ABC26PH0039 · Experimentally determined rate law for the chemical reaction, 2NO2F → 2NO2 + F2 is R = k[NO2F] The rate determining step consistent with… · Rate Laws Order
ABC26PH0065 · In a potentiometric titration, the end point is characterised by · Electrochemistry – General
ABC26PH0085 · The point group obtained by adding symmetry operation sigma h to the point group C4 is · Symmetry Elements Point Groups
ABC26PH0086 · The character table for the D4 point group is provided below: For this point group, the correct statement among the following is: · Character Tables
ABC26IN0838 · Decomposition temperature of CaCO3 in thermogravimetric analysis will be highest in dynamic atmosphere of: · Analytical Chemistry – General
ABC26IN0886 · In the absence of bound globin chain, heme group on exposure to O2 gives the iron-oxygen species · Oxygen Carriers Hemoglobin
ABC26IN0887 · Match the metal given in Column-A with its medicinal use as a compound in Column-B Correct match is · Metal Toxicity Medicine
ABC26IN0888 · Correct combination of number and size of rings present in a metal ion-porphine complex (including metal ion bearing chelate rings) is · Metal Toxicity Medicine
ABC26IN0889 · In human body cis- platinhydrolyzes to diaqua complex and modifies the DNA structure by binding to · Bioinorganic Chemistry – General
ABC26IN0954 · Correct combination for pi and pi * orbitals in B2 molecule is · Chemical Bonding – General
ABC26IN0955 · The correct shape of [TeF5]- ion on the basis of VSEPR theory is · MO Theory Diatomics
ABC26IN0956 · The number of 3c-2e bonds present in Al (BH4)3 is- · Chemical Bonding – General
ABC26IN0957 · The expected H-H-H bond angle in [H3]+is · Chemical Bonding – General
ABC26IN0959 · The numbers of triangular faces in square antiprism, icosahedron and tricapped trigonal prism (capped on square faces), respectively, are · Chemical Bonding – General
ABC26IN1076 · [NiII L6]n+ or n- shows absorption bands at 8500, 15400, and 26000 cm-1 whereas [NiII L'6]n+ or n- at 10750, 17500 and 28200 cm-1. L and L'… · Coordination Chemistry – General
ABC26IN1077 · The number of microstates present in 3F-term is · Term Symbols Spectra
ABC26IN1078 · Chelate effect is · Stability Chelate Effect
ABC26IN1079 · The lowest energy term for the d6configuration is · Term Symbols Spectra
ABC26IN1080 · The first excited state of hydrogen molecule is · Coordination Chemistry – General
ABC26IN1081 · Complex [Cr(bipyridyl)3]3+, shows red phosphorescence due to transition · Coordination Chemistry – General
ABC26IN1082 · The complex that shows orbital contribution to the magnetic moment, is · Molecular Orbital Ligand Field
ABC26IN1083 · Paramagnetic susceptibility of the order of 10-6 cm3mol-1 observed for KMnO4 is due to- · Magnetism
ABC26IN1084 · The room temperature magnetic moment (in BM) for a monomeric Cu (II) complex is greater than 1.73. This may be explained using the… · Coordination Chemistry – General
ABC26IN1178 · Identify correct statements for the EPR spectrum of VO(acac)2 [with one pyramidal geometry at vanadium] at 77 K [I(51V)=7/2] (A) It has two… · Inorganic Spectroscopy – General
ABC26IN1179 · The numbers of lines shown by the BH3 part of the molecule Ph3 P. 11 BH3 in the 1 H and 11 B NMR spectra are, respectively [I (11 B)=3 / 2… · Electronic Spectra Tanabe Sugano
ABC26IN1180 · To record Mossbauer spectrum of Fe containing samples, a source 'X' is used. X after a nuclear transformation (Y), gives gamma -radiation… · Mossbauer
ABC26IN1215 · For monoionic complex [UO2(NO3)3]- the correct coordination number and geometry respectively, are · Lanthanides & Actinides – General
ABC26IN1216 · The g values for Ce3+ (4f1) and Pr3+ (4f2) are, respectively · Lanthanides & Actinides – General
ABC26IN1288 · The numbers of P-S and P-P bonds in the compound P4 S3 are, respectively · Main Group Elements – General
ABC26OR0980 · In the 1H NMR spectrum of myrtenal, the two methyl groups are expected to display signals at (chemical shift values delta in ppm) myrtenal · NMR 1H
ABC26OR1042 · The frontier orbital interactions involved in the formation of the carbocation intermediate in the reaction of isobutylene with HCl are · Frontier Orbital Analysis
ABC26OR1043 · The following transformation proceeds through two consecutive electrocyclic processes, which are · Electrocyclic
ABC26OR1078 · The correct match for the following transformations P-S with the processes I-IV is Reactions: (P) + H2C=CH2 (Q) + CO (R) + (S) + 3O2… · Photocycloaddition
ABC26PH0930 · Experimentally determined rate law for the chemical reaction, 2NO2F → 2NO2 + F2 is R = k[NO2F] The rate determining step consistent with… · Rate Laws Order
ABC26PH0931 · For the chemical reaction in aqueous solution, CH2ClCOO^- + OH^- → CH2OHCOO^- + Cl^- the correct statement is · Rate Laws Order
ABC26PH0932 · If experimentally observed rate constant is greater than the maximum value of rate constant obtained using hard-sphere model of collision… · Rate Laws Order
ABC26PH0933 · Half-life t1/2 for a third order reaction 3C → products, where C0 is the initial concentration of C, will be · Rate Laws Order
ABC26PH1002 · In a potentiometric titration, the end point is characterised by · Electrochemistry – General
ABC26PH1004 · The standard electrode potential E0 at a fixed temperature and in a given medium is dependent on · Nernst Cells
ABC26PH1005 · Two aqueous 1 : 1 electrolyte systems A and B are at different temperatures TA and TB and CA and CB concentrations, respectively. Their… · Debye Huckel
ABC26PH1123 · In an NMR spectrometer containing a 2.5 T magnet, Larmor precession frequency of 1H is 100 MHz. The radiofrequency used in this… · NMR ESR Physical
ABC26PH1124 · Upon application of a weak magnetic field, a line in the microwave absorption spectrum of rigid rotor splits into 3 lines. The quantum… · Molecular Spectroscopy – General