113 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0018 · The pair of light source and atomizer resulting highest sensitivity to atomic absorption spectrometric measurement is: · Analytical Chemistry – General
ABC26IN0026 · Differential pulse polarography (DPP) is more sensitive than D.C. Polarography (DCP). Consider following reasons for it: 1. Non-faradic… · Analytical Chemistry – General
ABC26IN0027 · Considering the following parameters with reference to the fluorescence of a solution: 1. Molar absorptivity of fluorescent molecule 2… · Analytical Chemistry – General
ABC26IN0162 · The 119Sn NMR chemical shift (approximately in ppm) corresponding to (5-Cp )2Sn (relative to Me4Sn) is · Inorganic Spectroscopy – General
ABC26OR0033 · The most stable conformation for the following compound is · Conformational Analysis
ABC26OR0034 · The correct relation between the following compounds is · Stereochemistry R S E Z
ABC26OR0035 · The correct order of heat of hydrogenation for the following compounds is (I) (II) (III) (IV) · General Organic Chemistry – General
ABC26OR0036 · The hydrocarbon among the following having conformationally locked chair-boat-chair form is · Conformational Analysis
ABC26OR0037 · Identify two enantiomers among the following compounds · Stereochemistry R S E Z
ABC26OR0038 · In the following compound, the stereochemical descriptor for Ha and Hb is · General Organic Chemistry – General
ABC26OR0039 · The correct statements about conformations X and Y of 2-butanone are (X) (Y) (A) X is more stable than Y (B) Y is more stable than X (C)… · Conformational Analysis
ABC26OR0040 · The correct order of magnitude of 'A values' for the given substituents in cyclohexane derivatives is X = CH3, CN, Ph · General Organic Chemistry – General
ABC26OR0041 · The correct order of pKa values for the compounds X, Y and Z is (X) (Y) (Z) · Acidity Basicity
ABC26OR0100 · Biogenetic precursors for the natural product umbelliferone among the following are umbelliferone · Natural Products – General
ABC26OR0101 · Antitubercular drug(s) among the following is (are) · Natural Products – General
ABC26OR0151 · The major product formed in the following reaction is · Pericyclic Reactions – General
ABC26OR0254 · The major product formed in following reaction sequence is · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0255 · The major product formed in following reaction sequence is · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0256 · The major product formed in following reaction is · Named Reactions
ABC26OR0257 · The products A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0258 · The products A and B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0259 · The major product formed in following reaction sequence is · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0260 · The major product formed in following reaction is · Named Reactions
ABC26OR0261 · The major product formed in following reaction sequence is · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0262 · The structures of A and B in the following reaction sequence are · Reduction Reagents
ABC26OR0263 · Structure of the major product in the following synthetic sequence is · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26PH0006 · The lowest energy-state of an atom with electronic configuration ns1 np1 has the term symbol · Term Symbols Atoms
ABC26PH0007 · The electric-dipole allowed transition among the following is · Selection Rules
ABC26PH0008 · The term symbol for the first excited state of Be with the electronic configuration 1 s2 2 s1 3 s1 is · Term Symbols Atoms
ABC26PH0013 · The concentration of a reactant undergoing decomposition was 0.1,0.08 and 0.067 mol L-1 after 1.0,2.0 and 3.0 hr respectively. The order of… · Chemical Kinetics – General
ABC26PH0033 · The temperature-dependence of a reaction is given by k=A T2 (-E0 / R T ) The activation energy Ea of the reaction is given by: · Arrhenius Activation
ABC26PH0034 · For a reaction, 2 A+B 3 Z, if the rate of consumption of A is 2 10-4 mol dm-3 s-1 the rate of formation of Z (in mol ~ dm-3 s-1 ) will be · Chemical Kinetics – General
ABC26PH0036 · Considering the following parameters with reference to the fluorescence of a solution : 1. Molar absorptivity of fluorescent molecule. 2… · Chemical Kinetics – General
ABC26PH0037 · In a photochemical reaction, radicals formed according to the equation arrayl C4H10 + h 2\,C2H5 \\ C2H5 + C2H5 k2 C2H6 + C2H4 array If I is… · Chemical Kinetics – General
ABC26PH0059 · The correct Delta G for the cell reaction involving steps arrayl Zn(s) Zn2+(aq)+2e \\ Cu2+(aq)+2e Cu(s) array is · Nernst Cells
ABC26PH0060 · The temperature-dependence of an electrochemical cell potential is · Electrochemistry – General
ABC26PH0061 · Conductometric titration of a strong acid with a strong alkali (MOH) shows linear fall of conductance up to neutralization point because of · Conductance
ABC26PH0082 · The product C2x ( C2x is the two-fold rotation axis around the x-axis and is the xy mirror plane) is · Group Theory – General
ABC26PH0083 · A molecular orbital of a diatomic molecule changes sign when it is rotated by 180 around the molecular axis. This orbital is · Group Theory – General
ABC26PH0084 · IR active normal modes of methane belong to the irreducible representation: · Character Tables
ABC26PH0215 · For a reaction on a surface At low pressure of H, the rate is proportional to · Surface Chemistry – General
ABC26PH0216 · Energy of interaction of colloidal particles as a function of distance of separation can be identified as (1) vander Waals, (2) double… · Colloids Micelles
ABC26IN0805 · Match the action of H2 O2, in aqueous medium given in column A with the oxidation/reduction listed in column B · Acids & Bases – General
ABC26IN0806 · Water plays different roles in the following reactions. arrayl (i) 2H2O+Ca Ca2++2OH-+H2 (ii) nH2O+Cl [Cl(H2O)n]- \\ (iii) 6H2O+Mg2+… · Acids & Bases – General
ABC26IN0842 · Differential pulse polarography (DPP) is more sensitive than D.C. Polarography (DCP). Consider following reasons for it: 1. Non-faradic… · Analytical Chemistry – General
ABC26IN0843 · Considering the following parameters with reference to the fluorescence of a solution: 1. Molar absorptivity of fluorescent molecule 2… · Analytical Chemistry – General
ABC26IN0879 · The biological functions of carbonic anhydrase and carboxypeptidase A, respectively, are · Bioinorganic Chemistry – General
ABC26IN0880 · The Fe-Nporphyrin bond distances in the deoxy and oxy-hemoglobin, respectively, are · Oxygen Carriers Hemoglobin
ABC26IN0881 · The total number of metal ions and the number of coordinated imidazole units of histidine in the active site of oxy-hemocyanin… · Metal Toxicity Medicine
ABC26IN0947 · The geometries of [Br3 ]+and [I5 ]+respectively, are · Chemical Bonding – General