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Chemistry · 2023 · 29 Jan · Shift 2

23 questions from this JEE Main paper
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Chemistry · 2023 · 29 Jan · Shift 2

23 questions from this JEE Main paper

Periodic Table and Periodicity2 questionsD and F Block Elements3 questionsThermodynamics1 questionsAlcohols Phenols and Ethers3 questionsChemical Bonding and Molecular Structure1 questionsSome Basic Concepts of Chemistry3 questionsCoordination Compounds1 questionsCompounds Containing Nitrogen1 questionsBiomolecules1 questionsSolutions1 questionsHydrocarbons1 questionsAldehydes Ketones and Carboxylic Acids1 questionsElectrochemistry1 questionsChemical Equilibrium1 questionsStructure of Atom1 questionsChemical Kinetics and Nuclear Chemistry1 questions
  1. Q1.Given below are two statements : Statement I : The decrease in first ionization enthalpy from B to Al is much larger than that from Al to Ga. Statement II : The d orbitals in Ga are completely filled. In the light of the above statements,…
    Chemistry · Periodic Table and Periodicity · MCQ
  2. Q2.Given below are two statements : Statement I : Nickel is being used as the catalyst for producing syn gas and edible fats. Statement II : Silicon forms both electron rich and electron deficient hydrides. In the light of the above…
    Chemistry · D and F Block Elements · MCQ
  3. Q3.Which of the following relations are correct? (A) ΔU=q+pΔV(B) ΔG=ΔH−TΔS(C) ΔS=Tqrev​​(D) ΔH=ΔU−ΔnRT Choose the most appropriate…
    Chemistry · Thermodynamics · MCQ
  4. Q4.A solution of CrO5​ in amyl alcohol has a ​ colour.
    Chemistry · Alcohols Phenols and Ethers · MCQ
  5. Q5.According to MO theory the bond orders for O22−​, CO and NO+ respectively, are
    Chemistry · Chemical Bonding and Molecular Structure · MCQ
  6. Q6.When a hydrocarbon A undergoes combustion in the presence of air, it requires 9.5 equivalents of oxygen and produces 3 equivalents of water. What is the molecular formula of A?
    Chemistry · Some Basic Concepts of Chemistry · MCQ
  7. Q7.The set of correct statements is : (i) Manganese exhibits +7 oxidation state in its oxide. (ii) Ruthenium and Osmium exhibit +8 oxidation in their oxides. (iii) Sc shows +4 oxidation state which is oxidizing in nature. (iv) Cr shows…
    Chemistry · D and F Block Elements · MCQ
  8. Q8.Correct order of spin only magnetic moment of the following complex ions is : (Given At.no. Fe : 26, Co : 27)
    Chemistry · Coordination Compounds · MCQ
  9. Q9.Reaction of propanamide with Br2​/KOH(aq) produces :
    Chemistry · Compounds Containing Nitrogen · MCQ
  10. Q10.Following tetrapeptide can be represented as (F, L, D, Y, I, Q, P are one letter codes for amino acids) Includes diagram
    Chemistry · Biomolecules · MCQ
  11. Q11.Match List I with List II Choose the correct answer from the options given below : Includes table
    Chemistry · Solutions · MCQ
  12. Q12.The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement)
    Chemistry · Hydrocarbons · MCQ
  13. Q13.An indicator 'X' is used for studying the effect of variation in concentration of iodide on the rate of reaction of iodide ion with H2​O2​ at room temp. The indicator 'X' forms blue coloured complex with compound 'A' present in…
    Chemistry · D and F Block Elements · MCQ
  14. Q14.Find out the major product for the following reaction. Includes diagram
    Chemistry · Alcohols Phenols and Ethers · MCQ
  15. Q15.Find out the major products from the following reaction sequence. Includes diagram
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  16. Q16.The volume of HCl, containing 73 g L −1, required to completely neutralise NaOH obtained by reacting 0.69 g of metallic sodium with water, is ​ mL. (Nearest Integer) (Given : molar masses of Na, Cl, O, H, are…
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  17. Q17.The equilibrium constant for the reaction Zn(s)+Sn2+(aq) ⇌ Zn2+(aq)+Sn(s) is 1×1020 at 298 K. The magnitude of standard electrode potential of Sn/Sn2+ if EZn2+/ZnΘ​=−0.76 V…
    Chemistry · Electrochemistry · Numerical
  18. Q18.At 298 K N2​ (g)+3H2​ (g)⇌ 2NH3​ (g), K1​=4×105N2​ (g)+O2​ (g)⇌ 2NO (g), K2​=1.6×1012H2​ (g)+21​O2​ (g)⇌ H2​O (g), K3​=1.0×10−13…
    Chemistry · Chemical Equilibrium · Numerical
  19. Q19.The denticity of the ligand present in the Fehling's reagent is ​.
    Chemistry · Alcohols Phenols and Ethers · Numerical
  20. Q20.When 0.01 mol of an organic compound containing 60% carbon was burnt completely, 4.4 g of CO 2​ was produced. The molar mass of compound is ​ g mol −1 (Nearest integer).
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  21. Q21.Total number of acidic oxides among N2​O3​,NO2​,N2​O,Cl2​O7​,SO2​,CO,CaO,Na2​O and NO is ​.
    Chemistry · Periodic Table and Periodicity · Numerical
  22. Q22.Assume that the radius of the first Bohr orbit of hydrogen atom is 0.6 Ao​. The radius of the third Bohr orbit of He + is ​ picometer. (Nearest Integer)
    Chemistry · Structure of Atom · Numerical
  23. Q23.For conversion of compound A → B, the rate constant of the reaction was found to be 4.6×10−5 L mol−1 s−1. The order of the reaction is ​.
    Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical