81 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0001 · In the reactions (A) and (B), n(H2O)+Cl-→[Cl(H2O)n]- (H2O)6+Mg+2→[Mg(H2O)6]+2 (A) (B) water behaves as · Lewis Bronsted
ABC26IN0056 · The size of the d orbitals in Si, P, S and Cl follows the order. · Chemical Bonding – General
ABC26IN0057 · The strength of P pi -d pi bonding in E-O (E = Si, P, S and Cl) follows the order · Hydrogen Bonding Weak Interactions
ABC26IN0058 · The decreasing order of dipole moment of molecules is · Dipole Moment Polarity
ABC26IN0159 · The metal complex that exhibits a triplet as well as doublet in its 31P NMR spectrum is · Inorganic Spectroscopy – General
ABC26OR0012 · The IUPAC name of the compound given below is: · Nomenclature Polycyclics
ABC26OR0013 · Epoxidation of (R)-cyclohex-2-enol with peracetic acid yields a 95:5 mixture of compounds A and B. Compounds A and B are · Stereochemistry R S E Z
ABC26OR0077 · Among the following, the amino acid which is basic in nature is: · Amino Acids Peptides
ABC26OR0194 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0195 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0196 · The major product formed in the following reaction is: 1. CF3CO3H 2. H3O+ · Named Reactions
ABC26OR0202 · The major product formed in the following reaction is: 1. DIBAL (1 eq.) 2. CH2=CHMgBr 3. PCC · Named Reactions
ABC26OR0203 · The major products A and B in the following reaction sequence are AIBN, Delta B · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26PH0052 · The molar conductivities at infinite dilution Lambda mo for Na2 SO4, K2 SO4, KCl, HCl and HCOONa at 300 K are 260,308,150,426 and 105 S… · Electrochemistry – General
ABC26PH0053 · The correct value of E°, of a half cell in the following graph of E vs log m (molality) is: log m · Electrochemistry – General
ABC26PH0196 · The relative population in two states with energies E1 and E2 satisfying Boltzmann distribution is given by n1/n2 = (3/2)exp [-(E1 -… · Statistical Equilibrium
ABC26PH0197 · The energy levels of the harmonic oscillator (neglecting zero point energy) are epsilon (n)= nhv and n=0,1,2, …. Assuming T partition… · Partition Functions
ABC26PH0198 · The correct entropy for 6 identical particles with their occupation number 0,1,2,3 in four steps is : · Statistical Thermodynamics – General
ABC26PH0228 · The vapour of a pure substance, when cooled under a pressure less than its triple-piont pressure, · Thermodynamics – General
ABC26IN0800 · In the reactions (A) and (B), n(H2O) + Cl- → [Cl(H2O)n]- (A) (H2O)6 + Mg2+ → [Mg(H2O)6]2+ (B) Water behaves as · Acids & Bases – General
ABC26IN0801 · In the following reactions carried out in liquid NH3 Zn (NH2)2+2 KNH2 → K2 [Zn (NH2)4] K2 [Zn (NH2)4]+2 NH4 NO3 → Zn (NH2)2+2 KNO3+4 NH3… · Acids & Bases – General
ABC26IN0857 · The oxidation state of iron in met-hemoglobin is · Oxygen Carriers Hemoglobin
ABC26IN0858 · The changes (from A-D given below) which occur when O2 binds to hemerythrin are (A) One iron atoms is oxidized (B) Both the iron atoms are… · Iron Sulfur Proteins
ABC26IN0859 · In the photosynthetic systems the redox metalloproteins involved in electron transfer are cytochrome (cyt, b), cytochrome bf complex (cyt… · Iron Sulfur Proteins
ABC26IN0929 · The size of the d orbitals in Si, P, S and Cl follows the order. · Chemical Bonding – General
ABC26IN0930 · The strength of P pi -d pi bonding in E-O(E=Si, P, S and Cl) follows the order · Hydrogen Bonding Weak Interactions
ABC26IN0931 · The decreasing order of dipole moment of molecules is · Dipole Moment Polarity
ABC26IN1004 · As a ligand Cl- is: · Molecular Orbital Ligand Field
ABC26IN1006 · The nucleophilic attack on olefins under mild conditions: · Electron Transfer Redox
ABC26IN1007 · The number of spin-allowed ligand field transitions for octahedral Ni (II) complexes with 3A2g, ground state is: · Molecular Orbital Ligand Field
ABC26IN1008 · The number of microstates for d5 electron configuration is: · Electron Transfer Redox
ABC26IN1009 · The set of allowed electronic transitions among the following is: (A) 4 Sigma → 2 Pi (B) 3 Sigma → 3 Pi (C) 1 Delta → 1 Delta (D) 2 Pi → 2… · Electron Transfer Redox
ABC26IN1159 · The metal complex that exhibits a triplet as well as doublet in its 31P NMR spectrum is · Inorganic Spectroscopy – General
ABC26IN1160 · The total numbers of fine and hyperfine EPR lines expected for octahedral high-spin Mn(II) complexes are respectively (I=5 / 2 for Mn) · Inorganic Spectroscopy – General
ABC26IN1200 · The least basic among the following is: · Lanthanides & Actinides – General
ABC26IN1201 · The pair of lanthanides with the highest third-ionization energy is: · Lanthanides & Actinides – General
ABC26IN1202 · The lanthanide(III) ion having the highest partition coefficient between tri-n-butylphosphate and concentrated HNO3 is: · Lanthanides & Actinides – General
ABC26IN1242 · Among the halides, NCl3(A), PCl3(B) and AsCl3(C), those which produce two different acids. · Main Group Elements – General
ABC26IN1243 · The most used acid catalyst in oil industry and the relevant process are respectively · Main Group Elements – General
ABC26IN1244 · The correct structure of P4S3 is: · Main Group Elements – General
ABC26IN1245 · Low oxidation state complexes are often air-sensitive, but are rarely water sensitive because · Main Group Elements – General
ABC26IN1339 · In 'carbon-dating' application of radioisotopes, 14C emits · Isotope Applications
ABC26IN1357 · The reactions of Ni(CO)4 with the ligand (L=PMe3. or.P(OMe)3) L yields Ni(CO)3 L. The reaction is · Organometallic Compounds – General
ABC26IN1358 · Among the following the strongest oxidizing agent is: · Organometallic Compounds – General
ABC26IN1359 · For the reaction, trans- [IrCl(CO) (PPh3)2]+Cl2 → trans - [IrCl3(CO) (PPh3)2] the correct observation · Organometallic Compounds – General
ABC26IN1361 · The cluster having arachno type structure is: · Cluster Compounds Wade Rules
ABC26IN1362 · The final product of the reaction [Mn(CO)6]+ + MeLi → is: · Organometallic Compounds – General
ABC26OR0950 · The number of signals that appear in the broadband decoupled 13C NMR spectrum of phenanthrene and anthracene, respectively are · NMR 13C
ABC26OR0951 · In the 400 MHz, 1H NMR spectrum of organic compound exhibited a doublet. The two lines of the doublet are at delta 2.35 and 2.38 ppm. The… · NMR 1H