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Chemistry · 2016

58 questions from this IIT JAM paper
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Chemistry · 2016

58 questions from this IIT JAM paper

Basic Concepts and Stereochemistry7 questionsOrganic Reaction Mechanism and Synthetic Applications8 questionsNatural Products Chemistry2 questionsTransition Metals7 questionsAnalytical Chemistry3 questionsChemical Bonding and Shapes of Molecules4 questionsChemical Thermodynamics3 questionsSolid State3 questionsDeterminants1 questionsQualitative Organic Analysis2 questionsAromatic and Heterocyclic Chemistry1 questionsMain Group Elements2 questionsMaxima and Minima1 questionsChemical and Phase Equilibria2 questionsElectrochemistry1 questionsChemical Kinetics2 questionsAtomic and Molecular Structure3 questionsGaseous State3 questionsBioinorganic Chemistry1 questionsAdsorption1 questionsPeriodic Table1 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