93 questions from this paper that are in the bank. Each opens with its answer and explanation.
ABC26IN0071 · Dinuclear anion [I2(OH)2O8]4- has two bridging oxo groups. The geometry around each iodine is- · VSEPR Geometry
ABC26OR0054 · For the following compounds, the correct order of reactivity towards nucleophilic acyl substitution is · General Organic Chemistry – General
ABC26OR0055 · The correct statement about the following species is A B · Aromaticity
ABC26OR0057 · The correct order of rate of solvolysis in 80\% ethanol at 25°C is A B C · Carbocation Stability
ABC26OR0058 · The correct statement about the following compounds is: A B · Conformational Analysis
ABC26OR0115 · Reaction of D - glucose with following reagents produces Reagents: 1. Acetone, H+; 2. PDC ; 3 (EtO)2 P(O) CH2 CO2 Et, NaH · Carbohydrates
ABC26OR0133 · Number of signals observed in the 13 C NMR spectrum of the following compound is · NMR 13C
ABC26OR0134 · The reaction of [(5-C5H5)Fe(CO)2] with CH3I gives compound A. The 1H NMR spectrum of A shows two singlets in an integrated intensity ratio… · NMR 1H
ABC26OR0135 · The correct match of protons in column A with the 1H NMR chemical shifts in column B for the product of the following reaction is · NMR 1H
ABC26OR0154 · The structure of the intermediate A and the major product B, formed in the following reaction are · Pericyclic Reactions – General
ABC26OR0155 · Mechanism of the following transformation involves + · Electrocyclic
ABC26OR0156 · For the following thermal [2+2] cycloaddition reaction, the correct statement about Transition State (TS) and preference for endo product… · Cycloaddition Diels Alder
ABC26OR0166 · The major products formed in the following photochemical reaction are · Photocycloaddition
ABC26OR0360 · The major product in the following reaction is: · Named Reactions
ABC26OR0361 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0362 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0363 · The major product formed in the following reaction is: · Named Reactions
ABC26OR0364 · The major product formed in the following reaction is: Li, liq NH3 · Named Reactions
ABC26OR0365 · The major products A and B formed in the following reaction sequence are- A B · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0366 · The major products A and B formed in the following reaction sequence are- · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0367 · The major product formed in the following reaction is: ii) · Named Reactions
ABC26OR0368 · The major product formed in the following oxidation reaction is iii) Br2, CCl4 · Named Reactions
ABC26OR0369 · The major allylic alcohol A and the ester B formed in the following reaction sequence are · Carbonyl Chemistry
ABC26OR0370 · The major products A and B formed in the following reaction sequence are- A 1. 2. 3. B · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0371 · The major products A and B formed in the following reaction sequence are- · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0372 · The major products A and B formed in the following reaction sequence are- · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26OR0373 · The major heterocyclic compound formed in the following reaction is · Named Reactions
ABC26OR0374 · Structure of the intermediate A and the final product B in the following reaction sequence are · Reagents, Reaction Mechanisms & Named Reactions – General
ABC26PH0045 · For an enzyme-substrate reaction, arrayc E+S k1k-1 E S E S k2 E+P, array the slope and intercept of plot between 1/r and 1/([s]) are 10-2 s… · Enzyme Kinetics
ABC26PH0221 · In fission of 235 U atom the energy released is 200 MeV . In one day fission of 1 kg235 U will give power (in MW) approximately · Surface Chemistry – General
ABC26PH0245 · The change in entropy for a reversible adiabatic process is · Laws State Functions
ABC26PH0246 · In the phase diagram of water, the solid-liquidboundary has a negative slope. The reason for this unusual behavior can be traced to… · Laws State Functions
ABC26PH0247 · At 300K, the thermal expansion coefficient and isothermal compressibility of liquid water are 2 10-4\,K-1 and 5 10-5\,bar-1, respectively… · Thermodynamics – General
ABC26IN0815 · The transformation are given in Column 1 and reagent in Column II. Match the items of Column I with those of Column II · Acids & Bases – General
ABC26IN0831 · Height equivalent to theoretical plate (HETP) in gas liquid chromatography depends Significantly on which of the following? (A) Temperature… · Chromatography
ABC26IN0902 · For the catalytic activity of Cu and Zn containing enzyme, superoxide dismutase. What is /are the correct statement (S)? (A) Cu and Zn both… · Metal Toxicity Medicine
ABC26IN0903 · Consider the following statements for the oxygenation of hemocyanine: (A) Oxidation state of both copper atoms changes by two (B) It… · Oxygen Carriers Hemoglobin
ABC26IN0904 · Choose the correct set of statements for cis-platin. (A) It can be prepared from K2[PtCl4]. (B) It can be prepared from [Pt(NH3)4Cl2]. (C)… · Bioinorganic Chemistry – General
ABC26IN0965 · Dinuclear anion [I2(OH)2 O8 ]4- has two bridging oxo groups. The geometry around each iodine is · VSEPR Geometry
ABC26IN0966 · Removal of an electron form NO molecule results in A. An increase in the (NO) in the IR spectrum B. An EPR active species C. Electrons in… · Chemical Bonding – General
ABC26IN0967 · Consider the nature of solvents in column I and the corresponding max for l in various solvents given in column II. (for I, vapor axis 520… · Hydrogen Bonding Weak Interactions
ABC26IN0968 · Identify the correct statements about the electro negativity of groups given below: · Chemical Bonding – General
ABC26IN1109 · The total degeneracy of the ground term of CoII (high spin) in octahedral geometry is · Term Symbols Spectra
ABC26IN1110 · High spin complex of a 3d metal ion M has a magnetic moment of 2.9 B.M. in octahedral coordination environment and 4.1 B.M. in tetrahedral… · Coordination Chemistry – General
ABC26IN1111 · For electronic spectra of K2 CrO4(A) and K2 MoO4(B) the correct combination is · Electron Transfer Redox
ABC26IN1112 · The lowest energy state of a 1s12s1 electronic configuration, according to hund's rule, is · Electron Transfer Redox
ABC26IN1113 · Consider the following statements: (A) Cr2+ is easier to oxidize than V2+ in the gas phase (B) Cr2+ (aq) is a more powerful reducing agent… · Coordination Chemistry – General
ABC26IN1114 · Consider the statements A - D regarding equation I-III: (I) [Fe(CN)6 ]3-+ [Co(CN)5 ]3- [Fe(CN)6 ]4-+ [Co(CN)5 ]2- (II) [Co(bipy)3 ]2++… · Electron Transfer Redox
ABC26IN1115 · The allowed electronic transition in fluorine molecule is · Electron Transfer Redox