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Chemistry · 2022 · 29 Jul · Shift 1

24 questions from this JEE Main paper
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Chemistry · 2022 · 29 Jul · Shift 1

24 questions from this JEE Main paper

Chemical Bonding and Molecular Structure2 questionsSome Basic Concepts of Chemistry1 questionsPeriodic Table and Periodicity1 questionsD and F Block Elements3 questionsCompounds Containing Nitrogen4 questionsHaloalkanes and Haloarenes2 questionsAldehydes Ketones and Carboxylic Acids1 questionsAlcohols Phenols and Ethers1 questionsElectrochemistry1 questionsStructure of Atom1 questionsThermodynamics1 questionsSolutions1 questionsIonic Equilibrium1 questionsChemical Kinetics and Nuclear Chemistry1 questionsBiomolecules1 questionsPractical Organic Chemistry1 questionsCoordination Compounds1 questions
  1. Q1.Which of the following pair of molecules contain odd electron molecule and an expanded octet molecule?
    Chemistry · Chemical Bonding and Molecular Structure · MCQ
  2. Q2.N2( g)​+3H2( g)​⇌2NH3( g)​ 20 g   5 g Consider the above reaction, the limiting reagent of the reaction and number of moles…
    Chemistry · Some Basic Concepts of Chemistry · MCQ
  3. Q3.The first ionization enthalpy of Na, Mg and Si, respectively, are : 496, 737 and 786 kJ mol−1. The first ionization enthalpy (kJmol−1) of Al is :
    Chemistry · Periodic Table and Periodicity · MCQ
  4. Q4.The reaction of zinc with excess of aqueous alkali, evolves hydrogen gas and gives :
    Chemistry · D and F Block Elements · MCQ
  5. Q5.Number of lone pairs of electrons in the central atom of SCl2​,O3​,ClF3​ and SF6​, respectively, are :
    Chemistry · Chemical Bonding and Molecular Structure · MCQ
  6. Q6.In following pairs, the one in which both transition metal ions are colourless is :
    Chemistry · D and F Block Elements · MCQ
  7. Q7.In neutral or faintly alkaline medium, KMnO4​ being a powerful oxidant can oxidize, thiosulphate almost quantitatively, to sulphate. In this reaction overall change in oxidation state of manganese will be :
    Chemistry · D and F Block Elements · MCQ
  8. Q8.Which among the following is the strongest Bronsted base?
    Chemistry · Compounds Containing Nitrogen · MCQ
  9. Q9.Which among the following pairs of the structures will give different products on ozonolysis? (Consider the double bonds in the structures are rigid and not delocalized.)
    Chemistry · Haloalkanes and Haloarenes · MCQ
  10. Q10.Considering the above reactions, the compound 'A' and compound 'B' respectively are : Includes diagram
    Chemistry · Haloalkanes and Haloarenes · MCQ
  11. Q11.Consider the above reaction sequence, the Product 'C' is : Includes diagram
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  12. Q12.Consider the above reaction, the compound 'A' is : Includes diagram
    Chemistry · Compounds Containing Nitrogen · MCQ
  13. Q13.Which among the following represent reagent 'A'? Includes diagram
    Chemistry · Compounds Containing Nitrogen · MCQ
  14. Q14.Consider the following reaction sequence: The product 'B' is : Includes diagram
    Chemistry · Compounds Containing Nitrogen · MCQ
  15. Q15.A compound 'X' is acidic and it is soluble in NaOH solution, but insoluble in NaHCO3​ solution. Compound 'X' also gives violet colour with neutral FeCl3​ solution. The compound 'X' is :
    Chemistry · Alcohols Phenols and Ethers · MCQ
  16. Q16.Resistance of a conductivity cell (cell constant 129 m−1) filled with 74.5ppm solution of KCl is 100Ω(labelled as solution 1). When the same cell is filled with KCl solution of 149ppm…
    Chemistry · Electrochemistry · Numerical
  17. Q17.The minimum uncertainty in the speed of an electron in an one dimensional region of length 2ao​(Where ao​= Bohr radius 52.9pm) is ​kms−1…
    Chemistry · Structure of Atom · Numerical
  18. Q18.When 600 mL of 0.2 M HNO3​ is mixed with 400 mL of 0.1 M NaOH solution in a flask, the rise in temperature of the flask is ​×10−2∘C. (Enthalpy of neutralisation =57 kJ mol−1…
    Chemistry · Thermodynamics · Numerical
  19. Q19.If O2​ gas is bubbled through water at 303 K, the number of millimoles of O2​ gas that dissolve in 1 litre of water is ​. (Nearest Integer) (Given : Henry's Law constant for O2​…
    Chemistry · Solutions · Numerical
  20. Q20.If the solubility product of PbS is 8 × 10 − 28, then the solubility of PbS in pure water at 298 K is x × 10 − 16 mol L − 1. The value of x is ​. (Nearest Integer) [Given : 2​ = 1.41]
    Chemistry · Ionic Equilibrium · Numerical
  21. Q21.The reaction between X and Y is first order with respect to X and zero order with respect to Y. Examine the data of table and calculate ratio of numerical values of M and L. (Nearest Integer) Includes table
    Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
  22. Q22.In a linear tetrapeptide (Constituted with different amino acids), (number of amino acids) − (number of peptide bonds) is ​.
    Chemistry · Biomolecules · Numerical
  23. Q23.In bromination of Propyne, with Bromine, 1, 1, 2, 2-tetrabromopropane is obtained in 27% yield. The amount of 1, 1, 2, 2-tetrabromopropane obtained from 1 g of Bromine in this reaction is ​× 10 − 1 g.…
    Chemistry · Practical Organic Chemistry · Numerical
  24. Q24.[Fe(CN)6​]3− should be an inner orbital complex. Ignoring the pairing energy, the value of crystal field stabilization energy for this complex is (−)​Δ0​. (Nearest…
    Chemistry · Coordination Compounds · Numerical