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2016

58 questions · IIT JAM
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2016

58 questions · IIT JAM

Chemistry58 questions
Basic Concepts and StereochemistryChemistry · 7 questionsOrganic Reaction Mechanism and Synthetic ApplicationsChemistry · 8 questionsNatural Products ChemistryChemistry · 2 questionsTransition MetalsChemistry · 7 questionsAnalytical ChemistryChemistry · 3 questionsChemical Bonding and Shapes of MoleculesChemistry · 4 questionsChemical ThermodynamicsChemistry · 3 questionsSolid StateChemistry · 3 questionsDeterminantsChemistry · 1 questionsQualitative Organic AnalysisChemistry · 2 questionsAromatic and Heterocyclic ChemistryChemistry · 1 questionsMain Group ElementsChemistry · 2 questionsMaxima and MinimaChemistry · 1 questionsChemical and Phase EquilibriaChemistry · 2 questionsElectrochemistryChemistry · 1 questionsChemical KineticsChemistry · 2 questionsAtomic and Molecular StructureChemistry · 3 questionsGaseous StateChemistry · 3 questionsBioinorganic ChemistryChemistry · 1 questionsAdsorptionChemistry · 1 questionsPeriodic TableChemistry · 1 questions
  1. Q1.The correct order of pKa for the following compounds is Includes diagram
    Chemistry · Basic Concepts and Stereochemistry · MCQ
  2. Q2.The major product formed in the following reaction is Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
  3. Q3.The mechanism of the following transformation involves Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
  4. Q4.The most basic amino acid among the following is
    Chemistry · Natural Products Chemistry · MCQ
  5. Q5.The crystal field stabilization energy (CFSE) in [Mn(H₂O)₆]²⁺ is
    Chemistry · Transition Metals · MCQ
  6. Q6.Indicator used in redox titration is
    Chemistry · Analytical Chemistry · MCQ
  7. Q7.Among the following, the compound that has the lowest degree of ionic character is
    Chemistry · Chemical Bonding and Shapes of Molecules · MCQ
  8. Q8.The correct order of entropy for various states of CO₂ is
    Chemistry · Chemical Thermodynamics · MCQ
  9. Q9.The coordination numbers of Cs⁺ and Cl⁻ ions in the CsCl structure, respectively, are
    Chemistry · Solid State · MCQ
  10. Q10.Determinant of a square matrix is always
    Chemistry · Determinants · MCQ
  11. Q11.The correct order of ¹H NMR chemical shift (δ) values for the labeled methyl groups in the following compound is Includes diagram
    Chemistry · Qualitative Organic Analysis · MCQ
  12. Q12.Among the following, the most stable conformation of meso-2,3-dibromobutane is
    Chemistry · Basic Concepts and Stereochemistry · MCQ
  13. Q13.The major products X and Y in the following reaction sequence are Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
  14. Q14.The major product formed in the reaction of butanenitrile with phenylmagnesium bromide followed by acidification is
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
  15. Q15.An organic compound on reaction with 2,4-dinitrophenylhydrazine (2,4-DNP) gives a yellow precipitate. It also gives silver mirror on reaction with ammoniacal AgNO₃. It gives an alcohol and sodium salt of a carboxylic acid on reaction with…
    Chemistry · Qualitative Organic Analysis · MCQ
  16. Q16.The major products X and Y in the following reaction sequence are Includes diagram
    Chemistry · Aromatic and Heterocyclic Chemistry · MCQ
  17. Q17.The TRUE statement about [Cu(H₂O)₆]²⁺ is
    Chemistry · Transition Metals · MCQ
  18. Q18.The complexes [Pt(CN)₄]²⁻ and [NiCl₄]²⁻, respectively, are
    Chemistry · Transition Metals · MCQ
  19. Q19.The value of 'x' in [Cu(CO)ₓ]⁺ such that it obeys the 18 electron rule is
    Chemistry · Transition Metals · MCQ
  20. Q21.The red color of ruby is due to
    Chemistry · Transition Metals · MCQ
  21. Q22.The final products in the reaction of BF₃ with water are
    Chemistry · Main Group Elements · MCQ
  22. Q23.The correct order of bond angles in BF₃, NH₃, NF₃ and PH₃ is
    Chemistry · Chemical Bonding and Shapes of Molecules · MCQ
  23. Q24.The maximum of a function Ae⁻ᵃˣ² (A > 0; a > 0) is at x =
    Chemistry · Maxima and Minima · MCQ
  24. Q25.At 298 K, 0.1 mol of ammonium acetate and 0.14 mol of acetic acid are dissolved in 1 L of water. The pH of the resulting solution is [Given: pKₐ of acetic acid is 4.75]
    Chemistry · Chemical and Phase Equilibria · MCQ
  25. Q26.An electrochemical cell consists of two half-cell reactions AgCl(s) + e⁻ → Ag(s) + Cl⁻(aq) Cu(s) → Cu²⁺(aq) + 2e⁻ The mass of copper (in grams) dissolved on passing 0.5 A current for 1 hour is [Given: atomic mass of Cu is 63.6; F = 96500 C…
    Chemistry · Electrochemistry · MCQ
  26. Q27.For a zero order reaction, the half-life depends on the initial concentration [C₀] of the reactant as
    Chemistry · Chemical Kinetics · MCQ
  27. Q28.The effective nuclear charge of helium atom is 1.7. The first ionization energy of helium atom in eV is
    Chemistry · Atomic and Molecular Structure · MCQ
  28. Q29.The relationship between the van der Waals 'b' coefficient of N₂ and O₂ is
    Chemistry · Gaseous State · MCQ
  29. Q30.From the kinetic theory of gases, the ratio of most probable speed (Cmp) to root mean square speed (Crms) is
    Chemistry · Gaseous State · MCQ
  30. Q31.The correct statement(s) about the following species is(are) Includes diagram
    Chemistry · Basic Concepts and Stereochemistry · Multiple correct
  31. Q32.Consider the following reaction: (D)-glucose Ph-NH-NH2​cat. H∗​ X Among the following, the compound(s) whose osazone derivative(s) will have the same melting point as that of X is(are)
    Chemistry · Natural Products Chemistry · Multiple correct
  32. Q33.The appropriate reagents required for carrying out the following transformation are Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · Multiple correct
  33. Q34.The appropriate reagents required for carrying out the following transformation are Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · Multiple correct
  34. Q35.The protein(s) that belong to the class of blue copper proteins is(are)
    Chemistry · Bioinorganic Chemistry · Multiple correct
  35. Q36.The ion(s) that exhibit only charge transfer bands in the absorption spectra (UV-visible region) is(are)
    Chemistry · Transition Metals · Multiple correct
  36. Q37.The type(s) of interaction(s) that hold layers of graphite together is(are)
    Chemistry · Solid State · Multiple correct
  37. Q38.TRUE statement(s) about Langmuir isotherm is(are)
    Chemistry · Adsorption · Multiple correct
  38. Q39.The 3pz orbital has
    Chemistry · Atomic and Molecular Structure · Multiple correct
  39. Q40.The diatomic molecule(s) that has(have) two π-type bonds is(are)
    Chemistry · Atomic and Molecular Structure · Multiple correct
  40. Q41.Among the following, the number of molecules that are aromatic is __. Includes diagram
    Chemistry · Basic Concepts and Stereochemistry · Numerical
  41. Q42.The number of all possible isomers for the molecular formula C₆H₁₄ is __.
    Chemistry · Basic Concepts and Stereochemistry · Numerical
  42. Q43.Hydrolysis of 15.45 g of benzonitrile produced 10.98 g of benzoic acid. The percentage yield of acid formed is __.
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · Numerical
  43. Q44.Acetic acid content in commercial vinegar was analyzed by titrating against 1.5 M NaOH solution. A 20 mL vinegar sample required 18 mL of titrant to give endpoint. The concentration of acetic acid in the vinegar (in mol L⁻¹) is __.
    Chemistry · Analytical Chemistry · Numerical
  44. Q45.The bond order of Be₂ molecule is __.
    Chemistry · Chemical Bonding and Shapes of Molecules · Numerical
  45. Q46.The number of P–H bonds in hypophosphorus acid is __.
    Chemistry · Main Group Elements · Numerical
  46. Q47.The isotope ²¹⁴B₄Po undergoes one alpha and one beta particle emission sequentially to form an isotope “X”. The number of neutrons in “X” is __.
    Chemistry · Analytical Chemistry · Numerical
  47. Q48.In a diffraction experiment with X-rays of wavelength 1.54 Å, a diffraction line corresponding to 2θ = 20.8° is observed. The inter-planar separation in Å is __.
    Chemistry · Solid State · Numerical
  48. Q49.The potential energy of interaction between two ions in an ionic compound is given by U = 1389.4 [Z₁Z₂ / r/Å] kJ mol⁻¹. Assuming that CaCl₂ is linear molecule of length 5.6 Å, the potential energy for CaCl₂ molecule in kJ mol⁻¹ is __.
    Chemistry · Chemical Bonding and Shapes of Molecules · Numerical
  49. Q50.The enthalpy of formation for CH₄(g), C(g) and H(g) are –75, 717 and 218 kJ mol⁻¹, respectively. The enthalpy of the C–H bond in kJ mol⁻¹ is __.
    Chemistry · Chemical Thermodynamics · Numerical
  50. Q51.Specific rotation of the (R)-enantiomer of a chiral compound is 48. The specific rotation of a sample of this compound which contains 25% of (S)-enantiomer is __.
    Chemistry · Basic Concepts and Stereochemistry · Numerical
  51. Q52.Among the following, the number of compounds, which can participate as 'diene' component in a Diels-Alder reaction is __. Includes diagram
    Chemistry · Organic Reaction Mechanism and Synthetic Applications · Numerical
  52. Q53.Among the following, the number of molecules that possess C2​ axis of symmetry is __. Includes diagram
    Chemistry · Basic Concepts and Stereochemistry · Numerical
  53. Q54.Effective nuclear charge for 3d electron in vanadium (atomic number =23) according to Slater's rule is __.
    Chemistry · Periodic Table · Numerical
  54. Q55.The total number of isomers possible for the molecule [Co(NH3​)4​Cl(NO2​)]+ is __.
    Chemistry · Transition Metals · Numerical
  55. Q57.Cu(s)+4H+(aq)+2NO3−​(aq)→2NO2​(g)+Cu2+(aq)+2H2​O(l) In the above reaction at 1 atm and 298 K, if 6.36g of copper is…
    Chemistry · Gaseous State · Numerical
  56. Q58.The ΔHo for the reaction CO(g)+21​O2​(g)→CO2​(g) at 400K in kJmol−1 is __. Given at 298 K: | | ΔHfo​ kJ mol −1 | Cpo​ J mol −1…
    Chemistry · Chemical Thermodynamics · Numerical
  57. Q59.The rate constants for a reaction at 300 and 350 K are 8 and 160 L mol⁻¹ s⁻¹, respectively. The activation energy of the reaction in kJ mol⁻¹ is __. [Given R = 8.314 J K⁻¹ mol⁻¹]
    Chemistry · Chemical Kinetics · Numerical
  58. Q60.A 10 L flask containing 10.8 g of N₂O₅ is heated to 373 K, which leads to its decomposition according to the equation 2 N₂O₅(g) → 4 NO₂(g) + O₂(g). If the final pressure in the flask is 0.5 atm, then the partial pressure of O₂(g) in atm is…
    Chemistry · Chemical and Phase Equilibria · Numerical