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Chemistry · 2021 · 16 Mar · Shift 2

23 questions from this JEE Main paper
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Chemistry · 2021 · 16 Mar · Shift 2

23 questions from this JEE Main paper

Practical Organic Chemistry2 questionsAlcohols Phenols and Ethers1 questionsHydrocarbons1 questionsSome Basic Concepts of Chemistry2 questionsPeriodic Table and Periodicity2 questionsCompounds Containing Nitrogen2 questionsBiomolecules1 questionsD and F Block Elements2 questionsAldehydes Ketones and Carboxylic Acids1 questionsHaloalkanes and Haloarenes1 questionsRedox Reactions1 questionsCoordination Compounds1 questionsElectrochemistry1 questionsThermodynamics1 questionsStructure of Atom1 questionsChemical Kinetics and Nuclear Chemistry1 questionsIonic Equilibrium1 questionsSolutions1 questions
  1. Q1.Match List - I with List - II : The correct match is : Includes table
    Chemistry · Practical Organic Chemistry · MCQ
  2. Q2.The structure of X is : Includes diagram
    Chemistry · Alcohols Phenols and Ethers · MCQ
  3. Q3.An unsaturated hydrocarbon X on ozonolysis gives A. Compound A when warmed with ammonical silver nitrate forms a bright silver mirror along the sides of the test tube. The unsaturated hydrocarbon X is :
    Chemistry · Hydrocarbons · MCQ
  4. Q4.The exact volumes of 1 M NaOH solution required to neutralise 50 mL of 1 M H3​PO3​ solution and 100 mL of 2 M H3​PO2​ solution, respectively, are :
    Chemistry · Some Basic Concepts of Chemistry · MCQ
  5. Q5.The characteristics of elements X, Y and Z with atomic numbers, respectively, 33, 53 and 83 are :
    Chemistry · Periodic Table and Periodicity · MCQ
  6. Q6.Which of the following is least basic?
    Chemistry · Compounds Containing Nitrogen · MCQ
  7. Q7.Ammonolysis of Alkyl halides followed by the treatment with NaOH solution can be used to prepare primary, secondary and tertiary amines. The purpose of NaOH in the reaction is :
    Chemistry · Compounds Containing Nitrogen · MCQ
  8. Q8.The secondary structure of protein is stabilised by:
    Chemistry · Biomolecules · MCQ
  9. Q9.Fex2 and Fey3 are known when x and y are :
    Chemistry · D and F Block Elements · MCQ
  10. Q10.Identify the elements X and Y using the ionisation energy values given below : Includes table
    Chemistry · Periodic Table and Periodicity · MCQ
  11. Q11.In the above reaction, the reagent ''A'' is : Includes diagram
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  12. Q12.Arrange the following metal complex/compounds in the increasing order of spin only magnetic moment. Presume all the three, high spin system. (Atomic numbers Ce = 58, Gd = 64 and Eu = 63) (a) (NH4​)2​[Ce(NO3​)6​] (b) Gd(NO3​)3​ and (c) Eu(NO3​)3​…
    Chemistry · D and F Block Elements · MCQ
  13. Q13.Identify the reagent(s) 'A' and condition(s) for the reaction Includes diagram
    Chemistry · Haloalkanes and Haloarenes · MCQ
  14. Q14.Statement I : Sodium hydride can be used as an oxidising agent. Statement II : The lone pair of electrons on nitrogen in pyridine makes it basic. Choose the CORRECT answer from the options given below :
    Chemistry · Redox Reactions · MCQ
  15. Q15.[Ti(H2​O)6​]3+ absorbs light of wavelength 498 nm during a d − d transition. The octahedral splitting energy for the above complex is ​× 10 − 19 J. (Round off to the Nearest Integer). h = 6.626 ×…
    Chemistry · Coordination Compounds · Numerical
  16. Q16.A 5.0 m mol dm − 3 aqueous solution of KCl has a conductance of 0.55 mS when measured in a cell of cell constant 1.3 cm − 1. The molar conductivity of this solution is ​ mSm2 mol − 1. (Round off to the…
    Chemistry · Electrochemistry · Numerical
  17. Q17.At 25 ∘ C, 50 g of iron reacts with HCl to form FeCl2​. The evolved hydrogen gas expands against a constant pressure of 1 bar. The work done by the gas during this expansion is ​ J. (Round off to the…
    Chemistry · Thermodynamics · Numerical
  18. Q18.The number of orbitals with n = 5, m1 = +2 is ​. (Round off to the Nearest Integer).
    Chemistry · Structure of Atom · Numerical
  19. Q19.A and B decompose via first order kinetics with half-lives 54.0 min and 18.0 min respectively. Starting from an equimolar non reactive mixture of A and B, the time taken for the concentration of A to become 16 times that of B is ​…
    Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
  20. Q20.In Duma's method of estimation of nitrogen, 0.1840 g of an organic compound gave 30 mL of nitrogen collected at 287 K and 758 mm of Hg pressure. The percentage composition of nitrogen in the compound is ​. (Round…
    Chemistry · Practical Organic Chemistry · Numerical
  21. Q21.When 35 mL of 0.15 M lead nitrate solution is mixed with 20 mL of 0.12 M chromic sulphate solution, ​× 10 − 5 moles of lead sulphate precipitate out. (Round off to the Nearest Integer).
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  22. Q22.Sulphurous acid (H2​SO3​) has Ka1 = 1.7 × 10 − 2 and Ka2 = 6.4 × 10 − 8. The pH of 0.588 M H2​SO3​ is ​. (Round off to the Nearest Integer).
    Chemistry · Ionic Equilibrium · Numerical
  23. Q23.At 363 K, the vapour pressure of A is 21 kPa and that of B is 18 kPa. One mole of A and 2 moles of B are mixed. Assuming that this solution is ideal, the vapour pressure of the mixture is ​ kPa. (Round off to the…
    Chemistry · Solutions · Numerical