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Chemistry · 2021 · 17 Mar · Shift 1

22 questions from this JEE Main paper
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Chemistry · 2021 · 17 Mar · Shift 1

22 questions from this JEE Main paper

Periodic Table and Periodicity1 questionsD and F Block Elements2 questionsCompounds Containing Nitrogen1 questionsHaloalkanes and Haloarenes3 questionsAldehydes Ketones and Carboxylic Acids2 questionsIonic Equilibrium1 questionsBasics of Organic Chemistry2 questionsChemical Bonding and Molecular Structure1 questionsBiomolecules1 questionsStructure of Atom1 questionsSome Basic Concepts of Chemistry2 questionsPractical Organic Chemistry1 questionsChemical Kinetics and Nuclear Chemistry1 questionsChemical Equilibrium1 questionsThermodynamics1 questionsSolutions1 questions
  1. Q1.The absolute value of the electron gain enthalpy of halogens satisfies :
    Chemistry · Periodic Table and Periodicity · MCQ
  2. Q2.What is the spin-only magnetic moment value (BM) of a divalent metal ion with atomic number 25, in it's aqueous solution?
    Chemistry · D and F Block Elements · MCQ
  3. Q3.Hoffmann bromomide degradation of benzamide gives product A, which upon heating with CHCl3​ and NaOH gives product B. The structures of A and B are :
    Chemistry · Compounds Containing Nitrogen · MCQ
  4. Q4.The above reaction requires which of the following reaction conditions? Includes diagram
    Chemistry · Haloalkanes and Haloarenes · MCQ
  5. Q5.The product ''A'' in the above reaction is : Includes diagram
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  6. Q6.Product ''A'' in the above chemical reaction is : Includes diagram
    Chemistry · Haloalkanes and Haloarenes · MCQ
  7. Q7.Which of the following compound CANNOT act as a Lewis base?
    Chemistry · Ionic Equilibrium · MCQ
  8. Q8.Given below are two statements : Statement I : Potassium permanganate on heating at 573K forms potassium manganate. Statement II : Both potassium permanganate and potassium manganate are tetrahedral and paramagnetic in nature. In the light…
    Chemistry · D and F Block Elements · MCQ
  9. Q9.Mesityl oxide is a common name of :
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  10. Q10.Which of the following is an aromatic compound?
    Chemistry · Basics of Organic Chemistry · MCQ
  11. Q11.A central atom in a molecule has two lone pairs of electrons and forms three single bonds. The shape of this molecule is :
    Chemistry · Chemical Bonding and Molecular Structure · MCQ
  12. Q12.Given below are two statements : Statement I : Retardation factor (Rf) can be measured in meter/centimeter. Statement II : Rf value of a compound remains constant in all solvents. Choose the most appropriate answer from the options given…
    Chemistry · Basics of Organic Chemistry · MCQ
  13. Q13.Which of the following is correct structure of tyrosine?
    Chemistry · Biomolecules · MCQ
  14. Q14.Which of the following reaction is an example of ammonolysis?
    Chemistry · Haloalkanes and Haloarenes · MCQ
  15. Q15.A certain orbital has n = 4 and mL = − 3. The number of radial nodes in this orbital is ​. (Round off to the Nearest Integer).
    Chemistry · Structure of Atom · Numerical
  16. Q16.15 mL of aqueous solution of Fe2+ in acidic medium completely reacted with 20 mL of 0.03 M aqueous Cr2​O 72−​. The molarity of the Fe2+ solution is ​× 10-2 M. (Round off to the Nearest…
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  17. Q17.In the above reaction, 3.9 g of benzene on nitration gives 4.92 g of nitrobenzene. The percentage yield of nitrobenzene in the above reaction is ​%. (Round off to the Nearest Integer). (Given atomic mass : C : 12.0… Includes diagram
    Chemistry · Practical Organic Chemistry · Numerical
  18. Q18.For a certain first order reaction 32% of the reactant is left after 570s. The rate constant of this reaction is ​× 10 − 3 s − 1. (Round off to the Nearest Integer). [Given : log102 = 0.301, ln10 = 2.303]
    Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
  19. Q19.0.01 moles of a weak acid HA (Ka = 2.0 × 10 − 6) is dissolved in 1.0 L of 0.1 M HCl solution. The degree of dissociation of HA is ​× 10 − 5 (Round off to the Nearest Integer). [Neglect volume change…
    Chemistry · Chemical Equilibrium · Numerical
  20. Q20.The mole fraction of a solute in a 100 molal aqueous solution is ​× 10 − 2. (Round off to the Nearest Integer). [Given : Atomic masses : H : 1.0 u, O : 16.0 u ]
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  21. Q21.The standard enthalpies of formation of Al2​O3​ and CaO are − 1675 kJ mol-1 and − 635 kJ mol − 1 respectively. For the reaction 3CaO + 2Al → 3Ca + Al2​O3​ the standard reaction enthalpy Δ rH0 = ​…
    Chemistry · Thermodynamics · Numerical
  22. Q22.The oxygen dissolved in water exerts a partial pressure of 20 kPa in the vapour above water. The molar solubility of oxygen in water is ​× 10 − 5 mol dm − 3. (Round off to the Nearest Integer). [Given :…
    Chemistry · Solutions · Numerical