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Chemistry · 2022 · 25 Jun · Shift 2

22 questions from this JEE Main paper
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Chemistry · 2022 · 25 Jun · Shift 2

22 questions from this JEE Main paper

Structure of Atom1 questionsThermodynamics1 questionsSolutions1 questionsIonic Equilibrium2 questionsPeriodic Table and Periodicity1 questionsElectrochemistry2 questionsD and F Block Elements1 questionsBasics of Organic Chemistry1 questionsSalt Analysis1 questionsCompounds Containing Nitrogen2 questionsAlcohols Phenols and Ethers2 questionsAldehydes Ketones and Carboxylic Acids1 questionsSome Basic Concepts of Chemistry1 questionsChemical Bonding and Molecular Structure1 questionsChemical Kinetics and Nuclear Chemistry1 questionsCoordination Compounds1 questionsBiomolecules1 questionsRedox Reactions1 questions
  1. Q1.The minimum energy that must be possessed by photons in order to produce the photoelectric effect with platinum metal is : [Given : The threshold frequency of platinum is 1.3 × 1015 s − 1 and h = 6.6 × 10 − 34 J s.]
    Chemistry · Structure of Atom · MCQ
  2. Q2.At 25 ∘ C and 1 atm pressure, the enthalpy of combustion of benzene (I) and acetylene (g) are − 3268 kJ mol − 1 and − 1300 kJ mol − 1, respectively. The change in enthalpy for the reaction 3 C2​H2​(g) → C6​H6​ (I),…
    Chemistry · Thermodynamics · MCQ
  3. Q3.Solute A associates in water. When 0.7 g of solute A is dissolved in 42.0 g of water, it depresses the freezing point by 0.2 ∘ C. The percentage association of solute A in water, is : [Given : Molar mass of A = 93 g mol − 1. Molal…
    Chemistry · Solutions · MCQ
  4. Q4.The Ksp for bismuth sulphide (Bi2​S3​) is 1.08 × 10 − 73. The solubility of Bi2​S3​ in mol L − 1 at 298 K is :
    Chemistry · Ionic Equilibrium · MCQ
  5. Q5.The correct order of electron gain enthalpies of Cl, F, Te and Po is
    Chemistry · Periodic Table and Periodicity · MCQ
  6. Q6.Given below are two statements one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : The amphoteric nature of water is explained by using Lewis acid/base concept. Reason R : Water acts as an acid with NH3​…
    Chemistry · Ionic Equilibrium · MCQ
  7. Q7.The correct order of reduction potentials of the following pairs is A. Cl2​/Cl− B. I2​/I− C. Ag+/Ag D. Na+/Na E. Li+/Li Choose the correct answer from the options given below.
    Chemistry · Electrochemistry · MCQ
  8. Q8.The metal ion (in gaseous state) with lowest spin-only magnetic moment value is :
    Chemistry · D and F Block Elements · MCQ
  9. Q9.Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : A mixture contains benzoic acid and napthalene. The pure benzoic acid can be separated out by the use of benzene. Reason R…
    Chemistry · Basics of Organic Chemistry · MCQ
  10. Q10.During halogen test, sodium fusion extract is boiled with concentrated HNO3​ to
    Chemistry · Salt Analysis · MCQ
  11. Q11.Amongst the following, the major product of the given chemical reaction is Includes diagram
    Chemistry · Compounds Containing Nitrogen · MCQ
  12. Q12.In the given reaction 'A' can be Includes diagram
    Chemistry · Alcohols Phenols and Ethers · MCQ
  13. Q13.Which of the following conditions or reaction sequence will NOT give acetophenone as the major product?
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  14. Q14.The major product formed in the following reaction, is Includes diagram
    Chemistry · Alcohols Phenols and Ethers · MCQ
  15. Q15.Which of the following ketone will NOT give enamine on treatment with secondary amines? [where t-Bu is − C(CH3​)3​]
    Chemistry · Compounds Containing Nitrogen · MCQ
  16. Q16.A protein 'A' contains 0.30% of glycine (molecular weight 75). The minimum molar mass of the protein 'A' is ​× 103 g mol − 1 [nearest integer]
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  17. Q17.Amongst BeF2​, BF3​, H2​O, NH3​, CCl4​ and HCl, the number of molecules with non-zero net dipole moment is ​.
    Chemistry · Chemical Bonding and Molecular Structure · Numerical
  18. Q18.At 345 K, the half life for the decomposition of a sample of a gaseous compound initially at 55.5 kPa was 340 s. When the pressure was 27.8 kPa, the half life was found to be 170 s. The order of the reaction is ​.…
    Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
  19. Q19.A solution of Fe2​(SO4​)3​ is electrolyzed for 'x' min with a current of 1.5 A to deposit 0.3482 g of Fe. The value of x is ​. [nearest integer] Given : 1 F = 96500 C mol − 1 Atomic mass of Fe = 56 g mol…
    Chemistry · Electrochemistry · Numerical
  20. Q20.Amongst FeCl3​.3H2​O, K3​[Fe(CN)6​] and [Co(NH3​)6​]Cl3​, the spin-only magnetic moment value of the inner-orbital complex that absorbs light at shortest wavelength is ​ B.M. [nearest integer]
    Chemistry · Coordination Compounds · Numerical
  21. Q21.How many of the given compounds will give a positive Biuret test ​ ? Glycine, Glycylalanine, Tripeptide, Biuret
    Chemistry · Biomolecules · Numerical
  22. Q22.The neutralization occurs when 10 mL of 0.1M acid 'A' is allowed to react with 30 mL of 0.05 M base M(OH)2​. The basicity of the acid 'A' is ​. [M is a metal]
    Chemistry · Redox Reactions · Numerical