79 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0013 · The reaction of IO3- with I- in aqueous acidic medium results in · Acid and Bases – General
ABC26IN0014 · Among the following reactions, those that are feasible in liquid NH3 are (I) KNO3 + AgCl → KCl + AgNO3 (II) NH4Br + KNH2 → KBr + 2NH3 (III)… · Acid and Bases – General
ABC26IN0015 · The cations formed upon dissolving SnF4 and AuF3 in liquid BrF3 separately, respectively are · Acid and Bases – General
ABC26OR0061 · In the following equilibrium, conformer B is more stable than A when R is A · General Organic Chemistry – General
ABC26OR0117 · Reaction of deoxymonosaccharide A with 2 equivalents of HIO4 affords propanedial, formic acid and formaldehyde. The structure of A is · Natural Products – General
ABC26PH0011 · the term symbol for ground state dinitrogen cation radical (N2^+) is · Term Symbols Atoms
ABC26PH0074 · If the overpotential of an electrolysis process is increased from 0.5 V to 0.6 V, then the ratio of current densities (ln J0.6/J0.5) of the… · Electrode Kinetics
ABC26PH0118 · The Berge-Sponer plot between Delta Gv+1/2=(varepsilon v+1- varepsilon v) and (v+1) for CO ia a straight line with slope of -14 cm-1 and… · Rotational
ABC26PH0249 · One mole of a mono-atomic ideal gas is transformed from 300K and 2 atm to 600K and 4 atm. The entropy change for this process is · Laws State Functions
ABC26PH0250 · A non-ideal gas, follows the equation P=R T/Vm [1+B/Vm] where B is a function of temperature only. The deviation in internal energy from… · Laws State Functions
ABC26PH0251 · The chemical potential (mu) of a 2 molar Na2SO4 solution is expressed in terms of mean ionic activity co-efficient (gamma _±) as · Partial Molar Quantities
ABC26IN0817 · The reaction of IO3^- with I^- in aqueous acidic medium results in · Acids & Bases – General
ABC26IN0819 · The cations formed upon dissolving SnF4 and AuF3 in liquid BrF3 separately, respectively are · Acids & Bases – General
ABC26IN0828 · The role of H3 PO4 in the estimation of Fe (II) with K2 Cr2 O7 using diphenylamine sulphonate as ndicator is to · Analytical Chemistry – General
ABC26IN0829 · Incorrect statement for amperometric titration is · Titrations Gravimetry
ABC26IN0907 · The metal transferred by bacteria and fungi using siderophores/siderochromes is · Metal Toxicity Medicine
ABC26IN0908 · The correct match for the compounds in Column-I with the property in Column-II is · Bioinorganic Chemistry – General
ABC26IN0909 · Consider the following statements with respect to Cytochrome P-450 (A) It has histidine coordinated to iron centre (B) It is a membrane… · Zinc Enzymes
ABC26IN0972 · O2- is · Hydrogen Bonding Weak Interactions
ABC26IN0973 · Among the following, the correct statement about pi -molecular orbitals (pi -MOs) of benzene is · Chemical Bonding – General
ABC26IN0974 · Match the appropriate geometry on the right with each of the speices on the left · VSEPR Geometry
ABC26IN1123 · Self-exchange electron transfer is fastest in · Electron Transfer Redox
ABC26IN1124 · Consider the following reaction: Hg2+(aq)+X-(aq)=[HgX]+(aq) The stability constants for [HgX]+(aq) for X=F, Cl and Br follow the order · Stability Chelate Effect
ABC26IN1125 · The correct set of information is · Coordination Chemistry – General
ABC26IN1126 · Consider the following statements regarding electronic spectra of high spin complexes (A) Ti3+ complexes exhibit one sharp band. (B) Co2+… · Electron Transfer Redox
ABC26IN1128 · Donor mode of NO ligand depends on the metal. Now, consider the following complexes (in gaseous state). (A) [IrCl(CO)(PPh3)2(NO)]+ (B)… · Molecular Orbital Ligand Field
ABC26IN1129 · An aqueous solution of metal ion (A) gives a blood-red colored product (B) upon reaction with KSCN. Upon dropwise addition of NaF, the… · Reaction Mechanisms Substitution
ABC26IN1130 · Correct order of molar extinction coefficient values of the visible absorption bands for the following species is · Coordination Chemistry – General
ABC26IN1131 · The correct statement about base hydrolysis of [Co(py)4 Cl2]+(py-pyridine) is · Reaction Mechanisms Substitution
ABC26IN1132 · FeCr2 O4 and NiGa2 O4 have normal and inverse spinel structures, respectively. The correct statement is · Coordination Chemistry – General
ABC26IN1133 · The correct match of spin-only magnetic moment for the complexes cis- [Fe(phen)2(NCS-N)2] (A) and [Fe(phen)3]Cl2 (B) at 300 K is (phen… · Coordination Chemistry – General
ABC26IN1134 · In the electronic spectrum of [IrBr6]2-, the number of charge transfer band(s) and their origin are respectively · Electron Transfer Redox
ABC26IN1135 · For the given reaction [ * Co(L)n]2++ [Co(L)n]3+ → [ * Co(L)n]3++ [Co(L)n]2+ the correct statement with respect to the rate of electron… · Electron Transfer Redox
ABC26IN1136 · The number of geometrical isomers of the complex [RhH(C ≡ CR)2 (PMe3)3] is · Coordination Chemistry – General
ABC26IN1137 · I2 is violet in the solid as well as in gas phase. However in acetone or ethanol, it turns brown. Choose the correct statement(s) for this… · Charge Transfer Spectra
ABC26IN1138 · The pair of compounds in which both members show LMCT band in their electronic spectra is · Electron Transfer Redox
ABC26IN1139 · For the d3 electron configuration, the ground state term symbol is · Electron Transfer Redox
ABC26IN1140 · The products A and B for the given reaction [Co (NH3)5 Cl]2++ [Cr (OH2)6]2++5 H3 O+ → A+B are respectively, · Reaction Mechanisms Substitution
ABC26IN1141 · The number of expected electronic transitions in [Cr(en)3]3+ and trans- [Cr(en)2 F]+ at 4 K is, respectively (en = ethylenediamine) · Electron Transfer Redox
ABC26IN1142 · The value of magnetic moment will be independent of temperature for(acac = acetylacetonato; OAc = acetate; o-phen = o-phenathroline; Pz =… · Coordination Chemistry – General
ABC26IN1143 · In the following sequence of reactions the correct P, Q and R are respectively in dil. AcOHP [thiourea]solid N2↑ + Solution [soln.]dil… · Reaction Mechanisms Substitution
ABC26IN1144 · The term symbol for the ground state of dinitrogen cation radical (N2)+is · Term Symbols Spectra
ABC26IN1145 · The calculated heat of formation (Delta Hf) for NaCl2 and CaF is · Coordination Chemistry – General
ABC26IN1224 · The coordination number of Gd in GdCl3.6 H2 O is · Lanthanides & Actinides – General
ABC26IN1309 · The species that results by replacing one quarter of Si(IV) in pyrophyllite [Al2(OH)2 Si4 O10] with Al(III) [charge balance by K(1)] is · Main Group Elements – General
ABC26IN1310 · The oxidation state of sulphur in the dithionous and dithionic acids, respectively, are · Main Group Elements – General
ABC26IN1311 · In the synthesis of polydimethylsiloxane, the chain forming, branching and terminating agents respectively, are · Main Group Elements – General
ABC26IN1312 · The correct statements regarding Boron among the following (1) Nuclear spin of 11 B is greater than that of 10 B (II) The polarities of B-H… · Main Group Elements – General
ABC26IN1313 · Choose the correct statement(s) among the following (I) LiF is more soluble than LiClO4 in water. (II) The standard reduction potential… · Main Group Elements – General
ABC26IN1314 · Choose the correct statement(s) among the following (1) The dihedral angle in O2F2 is 0°. (II) OF2 is generally prepared by reacting… · Main Group Elements – General