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2017

59 questions · IIT JAM
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2017

59 questions · IIT JAM

Chemistry59 questions
Main Group ElementsChemistry · 3 questionsAnalytical ChemistryChemistry · 6 questionsBasic Concepts and StereochemistryChemistry · 4 questionsOrganic Reaction Mechanism and Synthetic ApplicationsChemistry · 10 questionsSpectroscopyChemistry · 2 questionsChemical and Phase EquilibriaChemistry · 2 questionsChemical ThermodynamicsChemistry · 4 questionsChemical Bonding and Shapes of MoleculesChemistry · 2 questionsTransition MetalsChemistry · 6 questionsQualitative Organic AnalysisChemistry · 2 questionsOrdinary Differential EquationsChemistry · 1 questionsDeterminantsChemistry · 1 questionsAtomic and Molecular StructureChemistry · 3 questionsChemical KineticsChemistry · 2 questionsBioinorganic ChemistryChemistry · 1 questionsNatural Products ChemistryChemistry · 3 questionsAromatic and Heterocyclic ChemistryChemistry · 1 questionsElectrochemistryChemistry · 2 questionsSolid StateChemistry · 2 questionsAdsorptionChemistry · 1 questionsGaseous StateChemistry · 1 questions
  1. Q1.The correct order of the boiling points of the compounds is
    Chemistry · Main Group Elements · MCQ
  2. Q2.In the following Latimer diagram, the species that undergoes disproportionation reaction is MnO4−​+0.56​MnO42−​+0.27​MnO43−​+0.93​MnO2​+0.15​Mn2​O3​−0.25​Mn(OH)2​−1.56​Mn…
    Chemistry · Analytical Chemistry · MCQ
  3. Q3.A yellow precipitate is formed upon addition of aqueous AgNO₃ to a solution of
    Chemistry · Analytical Chemistry · MCQ
  4. Q4.The compounds having C₃-axis of symmetry are Includes diagram
    Chemistry · Basic Concepts and Stereochemistry · MCQ
  5. Q5.The correct order of rate of solvolysis for the following compounds is
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
  6. Q6.In the following sequence of reactions, the overall yield (%) of O is Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
  7. Q7.Catalytic hydrogenation of the following compound produces saturated hydrocarbon(s). The number of stereoisomer(s) formed is Includes diagram
    Chemistry · Basic Concepts and Stereochemistry · MCQ
  8. Q8.The number of normal modes of vibration in naphthalene is
    Chemistry · Spectroscopy · MCQ
  9. Q9.The number of degrees of freedom of liquid water in equilibrium with ice is
    Chemistry · Chemical and Phase Equilibria · MCQ
  10. Q10.A straight line having a slope of −ΔU0/R is obtained in a plot between
    Chemistry · Chemical Thermodynamics · MCQ
  11. Q12.The coordination number of Al in crystalline AlCl3​ and liquid AlCl3​, respectively, is
    Chemistry · Chemical Bonding and Shapes of Molecules · MCQ
  12. Q13.The homogeneous catalyst used in water-gas shift reaction is
    Chemistry · Transition Metals · MCQ
  13. Q14.Nitrosyl ligand binds to d-metal atoms in linear and bent fashion and behaves, respectively, as
    Chemistry · Transition Metals · MCQ
  14. Q15.The metal ion (M²⁺) in the following reaction is M2++S2−⟶Black precipitatehot conc. HNO3​​White precipitate
    Chemistry · Analytical Chemistry · MCQ
  15. Q16.The correct order of wavelength of absorption (λmax​) of the Cr-complexes is (en = ethylenediamine)
    Chemistry · Transition Metals · MCQ
  16. Q17.The correct order of enthalpy of hydration for the transition metal ions is
    Chemistry · Transition Metals · MCQ
  17. Q18.Among the following compounds, the pair of enantiomers is Includes diagram
    Chemistry · Basic Concepts and Stereochemistry · MCQ
  18. Q19.The number of proton NMR signals for the compounds P and Q, respectively, is Includes diagram
    Chemistry · Qualitative Organic Analysis · MCQ
  19. Q20.The correct set of reagents for the following conversion is Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
  20. Q21.The product R in the following reaction is Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
  21. Q22.The major product S of the following reaction is Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
  22. Q23.In the following reaction, the major product T is Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
  23. Q24.The following conversion is carried out using Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
  24. Q25.In the following reactions, the major products E and F, respectively, are Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
  25. Q26.dxdy​=−xy​ is a differential equation for a/an
    Chemistry · Ordinary Differential Equations · MCQ
  26. Q27.Value of the given determinant is ​12−1​360​042​​
    Chemistry · Determinants · MCQ
  27. Q28.Ionisation energy of hydrogen atom in ground state is 13.6 eV. The energy released (in eV) for third member of Balmer series is
    Chemistry · Atomic and Molecular Structure · MCQ
  28. Q29.For a first order reaction A(g)→2B(g)+C(g), the rate constant in terms of initial pressure (p0​) and pressure at time t (pt​), is given by
    Chemistry · Chemical Kinetics · MCQ
  29. Q30.For a particle in one-dimensional box of length L with potential energy V(x)=0 for L>x>0 and V(x)=∞ for x≥L and x≤0, an acceptable wave function consistent with the boundary conditions is (A, B, C and D…
    Chemistry · Atomic and Molecular Structure · MCQ
  30. Q31.The "heme" containing protein(s) is/are
    Chemistry · Bioinorganic Chemistry · Multiple correct
  31. Q32.Among the following, the species having see-saw shape is/are
    Chemistry · Chemical Bonding and Shapes of Molecules · Multiple correct
  32. Q33.The indicator(s) appropriate for the determination of end point in the titration of a weak acid with a strong base is/are
    Chemistry · Analytical Chemistry · Multiple correct
  33. Q34.Jahn-Teller distortion is observed in octahedral complexes with d-electron configuration of
    Chemistry · Transition Metals · Multiple correct
  34. Q35.Among the following, the correct statement(s) is/are
    Chemistry · Natural Products Chemistry · Multiple correct
  35. Q36.The INCORRECT statement(s) among the following is/are
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · Multiple correct
  36. Q37.The following conversion is an example of Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · Multiple correct
  37. Q38.IR active molecule(s) is/are
    Chemistry · Spectroscopy · Multiple correct
  38. Q39.Intensive variable(s) is/are
    Chemistry · Chemical Thermodynamics · Multiple correct
  39. Q40.Wave nature of electromagnetic radiation is observed in
    Chemistry · Atomic and Molecular Structure · Multiple correct
  40. Q41.The number of isomeric structures of di-substituted borazine (B3​N3​H4​X2​) is
    Chemistry · Main Group Elements · Numerical
  41. Q42.The number of S-S bond(s) in tetrathionate ion is
    Chemistry · Main Group Elements · Numerical
  42. Q43.The number of unpaired electron(s) in K2​NiF6​ is
    Chemistry · Transition Metals · Numerical
  43. Q44.The number of reducing sugars among the following is Includes diagram
    Chemistry · Natural Products Chemistry · Numerical
  44. Q45.The maximum number of dipeptides that could be obtained by reaction of phenylalanine with leucine is
    Chemistry · Natural Products Chemistry · Numerical
  45. Q46.Among the following, the number of aromatic compound(s) is Includes diagram
    Chemistry · Aromatic and Heterocyclic Chemistry · Numerical
  46. Q47.At an operating frequency of 350 MHz, the shift (in Hz) of resonance from TMS (tetramethylsilane) of a proton with chemical shift of 2 ppm is
    Chemistry · Qualitative Organic Analysis · Numerical
  47. Q48.At 298 K and 1 atm, the molar enthalpies of combustion of cyclopropane and propene are -2091 kJ mol⁻¹ and -2058 kJ mol⁻¹, respectively. The enthalpy change (in kJ mol⁻¹) for the conversion of one mole of propene to one mole of cyclopropane…
    Chemistry · Chemical Thermodynamics · Numerical
  48. Q49.For a cell reaction, Pb(s)+Hg2​Cl2​(s)→PbCl2​(s)+2Hg(l), (∂T∂R0​)p​ is 1.45×10−4 VK−1. The entropy change (in J mol⁻¹ K⁻¹) for the reaction is [Given: 1 F =…
    Chemistry · Electrochemistry · Numerical
  49. Q50.For a reaction 2A+B→C+D, if rate of consumption of A is 0.1 mol L⁻¹s⁻¹, the rate of production of C (in mol L⁻¹s⁻¹) is
    Chemistry · Chemical Kinetics · Numerical
  50. Q51.The standard reduction potentials of Ce⁴⁺/Ce³⁺ and Fe³⁺/Fe²⁺ are 1.44 and 0.77 V, respectively. The log₁₀K (K is the equilibrium constant) value for the following reaction is (final answer should be rounded off to two decimal places) Ce⁴⁺…
    Chemistry · Electrochemistry · Numerical
  51. Q52.A radioactive element undergoes 80% radioactive decay in 300 min. The half-life for this species in minutes is
    Chemistry · Analytical Chemistry · Numerical
  52. Q53.Silver crystallizes in a face-centered cubic lattice. The lattice parameter of silver (in picometer) is [Given: Avogadro's number = 6.023 × 10²³ mol⁻¹, molar mass of silver = 107.87 g mol⁻¹ and density of crystal = 10.5 g cm⁻³]
    Chemistry · Solid State · Numerical
  53. Q54.The amount of bromine (atomic wt. = 80) required (in gram) for the estimation of 42.3 g of phenol (molecular wt. = 94 g mol⁻¹) is
    Chemistry · Analytical Chemistry · Numerical
  54. Q55.The total number of pair of enantiomers possible with molecular formula C₅H₁₂O is
    Chemistry · Basic Concepts and Stereochemistry · Numerical
  55. Q56.In 200 g of water, 0.01 mole of NaCl and 0.02 mole of sucrose are dissolved. Assuming solution to be ideal, the depression in freezing point of water (in °C) will be ​ (final answer should be rounded off to two…
    Chemistry · Chemical and Phase Equilibria · Numerical
  56. Q57.The adsorption of a gas follows the Langmuir isotherm with K = 1.25 kPa⁻¹ at 25 °C. The pressure (in Pa) at which surface coverage is 0.2 is ​
    Chemistry · Adsorption · Numerical
  57. Q58.The separation of 123 planes (in nm) in an orthorhombic cell with a = 0.25 nm, b = 0.5 nm and c = 0.75 nm is ​ (final answer should be rounded off to two decimal places)
    Chemistry · Solid State · Numerical
  58. Q59.A vessel contains a mixture of H₂ and N₂ gas. The density of this gas mixture is 0.2 g L⁻¹ at 300 K and 1 atm. Assuming that both the gases behave ideally, the mole fraction of N₂ (g) in the vessel is ​ (final…
    Chemistry · Gaseous State · Numerical
  59. Q60.Consider an isothermal reversible compression of one mole of an ideal gas in which the pressure of the system is increased from 5 atm to 30 atm at 300 K. The entropy change of the surroundings (in J K⁻¹) is ​…
    Chemistry · Chemical Thermodynamics · Numerical