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Chemistry · 2020 · 4 Sep · Shift 2

21 questions from this JEE Main paper
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Chemistry · 2020 · 4 Sep · Shift 2

21 questions from this JEE Main paper

Coordination Compounds3 questionsThermodynamics2 questionsD and F Block Elements1 questionsHaloalkanes and Haloarenes2 questionsCompounds Containing Nitrogen1 questionsBiomolecules1 questionsRedox Reactions1 questionsChemical Kinetics and Nuclear Chemistry1 questionsSome Basic Concepts of Chemistry1 questionsSolutions1 questionsAlcohols Phenols and Ethers2 questionsAldehydes Ketones and Carboxylic Acids1 questionsElectrochemistry1 questionsStructure of Atom1 questionsChemical Equilibrium1 questionsChemical Bonding and Molecular Structure1 questions
  1. Q1.The one that can exhibit highest paramagnetic behaviour among the following is : gly = glycinato; bpy = 2, 2'-bipyridine
    Chemistry · Coordination Compounds · MCQ
  2. Q2.The Crystal Field Stabilization Energy (CFSE) of [CoF3​(H2​O)3​] (Δ 0 < P) is :
    Chemistry · Coordination Compounds · MCQ
  3. Q3.The process that is NOT endothermic in nature is :
    Chemistry · Thermodynamics · MCQ
  4. Q4.The incorrect statement(s) among (a) - (c) is (are) (a) W(VI) is more stable than Cr(VI). (b) In the presence of HCl, permanganate titrations provide satisfactory results. (c) Some lanthanoid oxides can be used as phosphors.
    Chemistry · D and F Block Elements · MCQ
  5. Q5.Among the following compounds, which one has the shortest C – Cl bond?
    Chemistry · Haloalkanes and Haloarenes · MCQ
  6. Q6.In the following reaction sequence, [C] is : Includes diagram
    Chemistry · Compounds Containing Nitrogen · MCQ
  7. Q7.The number of chiral centres present in threonine is ​.
    Chemistry · Biomolecules · Numerical
  8. Q8.A 100 mL solution was made by adding 1.43 g of Na2​CO3​.xH2​O. The normality of the solution is 0.1 N. The value of x is ​. (The atomic mass of Na is 23 g/mol)
    Chemistry · Redox Reactions · Numerical
  9. Q9.The number of molecules with energy greater than the threshold energy for a reaction increases five fold by a rise of temperature from 27oC to 42oC. Its energy of activation in J/mol is ​. (Take ln 5 = 1.6094; R =…
    Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
  10. Q10.Consider the following equations : 2Fe2+ + H2​O2​ → xA + yB (in basic medium) 2MnO4−​ + 6H+ + 5H2​O2​ → x'C + y'D + z'E (in acidic medium) The sum of the stoichiometric coefficients x, y, x', y', and z' for products…
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  11. Q11.The osmotic pressure of a solution of NaCl is 0.10 atm and that of a glucose solution is 0.20 atm. The osmotic pressure of a solution formed by mixing 1 L of the sodium chloride solution with 2 L of the glucose solution is x × 10–3…
    Chemistry · Solutions · Numerical
  12. Q12.Which of the following compounds will form the precipitate with aq. AgNO3​ solution most readily?
    Chemistry · Haloalkanes and Haloarenes · MCQ
  13. Q13.The major product [R] in the following sequence of reactions as : Includes diagram
    Chemistry · Alcohols Phenols and Ethers · MCQ
  14. Q14.The molecule in which hybrid MOs involve only one d-orbital of the central atom is :
    Chemistry · Coordination Compounds · MCQ
  15. Q15.The major product [C] of the following reaction sequence will be : Includes diagram
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  16. Q16.The major product [B] in the following reactions is : Includes diagram
    Chemistry · Alcohols Phenols and Ethers · MCQ
  17. Q17.250 mL of a waste solution obtained from the workshop of a goldsmith contains 0.1 M AgNO3​ and 0.1 M AuCl. The solution was electrolyzed at 2V by passing a current of 1A for 15 minutes. The metal/metals electrodeposited will be [ EAg+/Ag0​…
    Chemistry · Electrochemistry · MCQ
  18. Q18.Five moles of an ideal gas at 1 bar and 298 K is expanded into vacuum to double the volume. The work done is :
    Chemistry · Thermodynamics · MCQ
  19. Q19.The shortest wavelength of H atom in the Lyman series is λ 1. The longest wavelength in the Balmar series of He+ is :
    Chemistry · Structure of Atom · MCQ
  20. Q20.If the equilibrium constant for A ⇌ B + C is Keq(1)​ and that of B + C ⇌ P is Keq(2)​, the equilibrium constant for A ⇌ P is :
    Chemistry · Chemical Equilibrium · MCQ
  21. Q21.The reaction in which the hybridisation of the underlined atom is affected is :
    Chemistry · Chemical Bonding and Molecular Structure · MCQ