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Chemistry · 2022 · 28 Jun · Shift 1

23 questions from this JEE Main paper
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Chemistry · 2022 · 28 Jun · Shift 1

23 questions from this JEE Main paper

Periodic Table and Periodicity1 questionsP Block Elements1 questionsD and F Block Elements1 questionsCoordination Compounds2 questionsBasics of Organic Chemistry2 questionsHaloalkanes and Haloarenes2 questionsAldehydes Ketones and Carboxylic Acids1 questionsCompounds Containing Nitrogen2 questionsBiomolecules1 questionsPractical Organic Chemistry3 questionsStructure of Atom1 questionsChemical Bonding and Molecular Structure1 questionsThermodynamics1 questionsSolutions1 questionsIonic Equilibrium1 questionsElectrochemistry1 questionsChemical Kinetics and Nuclear Chemistry1 questions
  1. Q1.Element "E" belongs to the period 4 and group 16 of the periodic table. The valence shell electron configuration of the element, which is just above "E" in the group is
    Chemistry · Periodic Table and Periodicity · MCQ
  2. Q2.Nitrogen gas is obtained by thermal decomposition of :
    Chemistry · P Block Elements · MCQ
  3. Q3.Which one of the lanthanoids given below is the most stable in divalent form?
    Chemistry · D and F Block Elements · MCQ
  4. Q4.Given below are two statements : Statement I : [Ni(CN)4​]2− is square planar and diamagnetic complex, with dsp2 hybridization for Ni but [Ni(CO)4​] is tetrahedral, paramagnetic and with sp3-hybridication for Ni. Statement II : [NiCl4​]2−…
    Chemistry · Coordination Compounds · MCQ
  5. Q5.Which one of the following techniques is not used to spot components of a mixture separated on thin layer chromatographic plate?
    Chemistry · Basics of Organic Chemistry · MCQ
  6. Q6.Which of the following structure are aromatic in nature? Includes diagram
    Chemistry · Basics of Organic Chemistry · MCQ
  7. Q7.The major product (P) in the reaction is Includes diagram
    Chemistry · Haloalkanes and Haloarenes · MCQ
  8. Q8.The correct structure of product 'A' formed in the following reaction. is Includes diagram
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  9. Q9.Which one of the following compounds is inactive towards SN1 reaction?
    Chemistry · Haloalkanes and Haloarenes · MCQ
  10. Q10.Identify the major product formed in the following sequence of reactions: Includes diagram
    Chemistry · Compounds Containing Nitrogen · MCQ
  11. Q11.A primary aliphatic amine on reaction with nitrous acid in cold (273 K) and there after raising temperature of reaction mixture to room temperature (298 K), gives a/an
    Chemistry · Compounds Containing Nitrogen · MCQ
  12. Q12.Stability of α-Helix structure of proteins depends upon
    Chemistry · Biomolecules · MCQ
  13. Q13.The formula of the purple colour formed in Laissaigne's test for sulphur using sodium nitroprusside is :
    Chemistry · Practical Organic Chemistry · MCQ
  14. Q14.A 2.0 g sample containing MnO2​ is treated with HCl liberating Cl2​. The Cl2​ gas is passed into a solution of KI and 60.0 mL of 0.1 M Na2​S2​O3​ is required to titrate the liberated iodine. The percentage of MnO2​ in the…
    Chemistry · Practical Organic Chemistry · Numerical
  15. Q15.If the work function of a metal is 6.63 × 10 − 19J, the maximum wavelength of the photon required to remove a photoelectron from the metal is ​ nm. (Nearest integer) [Given : h = 6.63 × 10 − 34 J…
    Chemistry · Structure of Atom · Numerical
  16. Q16.The hybridization of P exhibited in PF5​ is spxdy. The value of y is ​.
    Chemistry · Chemical Bonding and Molecular Structure · Numerical
  17. Q17.4.0 L of an ideal gas is allowed to expand isothermally into vacuum until the total volume is 2.0 L. The amount of heat absorbed in this expansion is ​ L atm.
    Chemistry · Thermodynamics · Numerical
  18. Q18.The vapour pressures of two volatile liquids A and B at 25 ∘ C are 50 Torr and 100 Torr, respectively. If the liquid mixture contains 0.3 mole fraction of A, then the mole fraction of liquid B in the vapour phase is ${x \over…
    Chemistry · Solutions · Numerical
  19. Q19.The solubility product of a sparingly soluble salt A2​X3​ is 1.1 × 10 − 23. If specific conductance of the solution is 3 × 10 − 5 S m − 1, the limiting molar conductivity of the solution is x× 10 − 3 S m2…
    Chemistry · Ionic Equilibrium · Numerical
  20. Q20.The quantity of electricity in Faraday needed to reduce 1 mol of Cr2O 72−​ to Cr3+ is ​.
    Chemistry · Electrochemistry · Numerical
  21. Q21.For a first order reaction A → B, the rate constant, k = 5.5 × 10 − 14 s − 1. The time required for 67% completion of reaction is x × 10 − 1 times the half life of reaction. The value of x is ​…
    Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
  22. Q22.Number of complexes which will exhibit synergic bonding amongst, [Cr(CO)6​], [Mn(CO)5​] and [Mn2​(CO)10​] is ​.
    Chemistry · Coordination Compounds · Numerical
  23. Q23.In the estimation of bromine, 0.5 g of an organic compound gave 0.40 g of silver bromide. The percentage of bromine in the given compound is ​ % (nearest integer) (Relative atomic masses of Ag and Br are 108u and…
    Chemistry · Practical Organic Chemistry · Numerical