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Chemistry · 2025 · 23 Jan · Shift 1

25 questions from this JEE Main paper
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Chemistry · 2025 · 23 Jan · Shift 1

25 questions from this JEE Main paper

Practical Organic Chemistry1 questionsChemical Bonding and Molecular Structure1 questionsAlcohols Phenols and Ethers1 questionsD and F Block Elements1 questionsElectrochemistry1 questionsCoordination Compounds3 questionsAldehydes Ketones and Carboxylic Acids1 questionsHaloalkanes and Haloarenes1 questionsP Block Elements1 questionsBasics of Organic Chemistry1 questionsSome Basic Concepts of Chemistry2 questionsBiomolecules1 questionsIonic Equilibrium2 questionsThermodynamics2 questionsHydrocarbons1 questionsPeriodic Table and Periodicity1 questionsStructure of Atom1 questionsCompounds Containing Nitrogen2 questionsChemical Kinetics and Nuclear Chemistry1 questions
  1. Q1.Given below are two statements: Statement I: In Lassaigne's test, the covalent organic molecules are transformed into ionic compounds. Statement II: The sodium fusion extract of an organic compound having N and S gives prussian blue colour…
    Chemistry · Practical Organic Chemistry · MCQ
  2. Q2.Match the List - I with List - II Choose the correct answer from the options given below: Includes table
    Chemistry · Chemical Bonding and Molecular Structure · MCQ
  3. Q3.What amount of bromine will be required to convert 2 g of phenol into 2,4,6-tribromophenol? (Given molar mass in gmol−1 of C,H,O,Br are 12,1,16,80 respectively )
    Chemistry · Alcohols Phenols and Ethers · MCQ
  4. Q4.The correct set of ions (aqueous solution) with same colour from the following is:
    Chemistry · D and F Block Elements · MCQ
  5. Q5.FeO42−​+2.0 V​Fe3+0.8 V​Fe2+−0.5 V​Fe0 In the above diagram, the standard electrode potentials are given in volts…
    Chemistry · Electrochemistry · MCQ
  6. Q6.CrCl3​⋅xNH3​ can exist as a complex. 0.1 molal aqueous solution of this complex shows a depression in freezing point of 0.558∘C. Assuming 100% ionisation of this complex and coordination…
    Chemistry · Coordination Compounds · MCQ
  7. Q7.The major product of the following reaction is : CH3​CH2​CH=O excess HCHO alkali ​ reflux ​ ?
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  8. Q8.Propane molecule on chlorination under photochemical condition gives two di-chloro products, " x" and "y". Amongst "x" and "y", "x " is an optically active molecule. How many tri-chloro products (consider only structural isomers)…
    Chemistry · Haloalkanes and Haloarenes · MCQ
  9. Q9.The incorrect statement among the following is
    Chemistry · P Block Elements · MCQ
  10. Q10.The correct stability order of the following species/molecules is : Includes diagram
    Chemistry · Basics of Organic Chemistry · MCQ
  11. Q11.2.8×10−3 mol of CO2​ is left after removing 1021 molecules from its 'x' mg sample. The mass of CO2​ taken initially is Given: NA​=6.02×1023 mol−1…
    Chemistry · Some Basic Concepts of Chemistry · MCQ
  12. Q12.Given below are two statements: Statement I: Fructose does not contain an aldehydic group but still reduces Tollen's reagent Statement II: In the presence of base, fructose undergoes rearrangement to give glucose. In the light of the above…
    Chemistry · Biomolecules · MCQ
  13. Q13.Which of the following happens when NH4​OH is added gradually to the solution containing 1 M A2+ and 1MB3+ ions? Given : Ksp ​[A(OH)2​]=9×10−10…
    Chemistry · Ionic Equilibrium · MCQ
  14. Q14.Ice at −5∘C is heated to become vapor with temperature of 110∘C at atmospheric pressure. The entropy change associated with this process can be obtained from
    Chemistry · Thermodynamics · MCQ
  15. Q15.Match the List - I with List - II Choose the correct answer from the options given below: Includes table
    Chemistry · Hydrocarbons · MCQ
  16. Q16.The element that does not belong to the same period of the remaining elements (modern periodic table) is:
    Chemistry · Periodic Table and Periodicity · MCQ
  17. Q17.The d-electronic configuration of an octahedral Co (II) complex having magnetic moment of 3.95 BM is:
    Chemistry · Coordination Compounds · MCQ
  18. Q18.The complex that shows Facial - Meridional isomerism is :
    Chemistry · Coordination Compounds · MCQ
  19. Q19.Heat treatment of muscular pain involves radiation of wavelength of about 900 nm . Which spectral line of H atom is suitable for this? Given : Rydberg constant RH​=105 cm−1, h=6.6×10−34 J s,c=3×108 m/s)…
    Chemistry · Structure of Atom · MCQ
  20. Q20.Which among the following react with Hinsberg's reagent? A. B.  C. CH3​−NH2​ D. N(CH3​)3​ E. Choose the correct answer from the options given below : Includes diagram
    Chemistry · Compounds Containing Nitrogen · MCQ
  21. Q21.For the thermal decomposition of N2​O5​( g) at constant volume, the following table can be formed, for the reaction mentioned below. 2 N2​O5​( g)→2 N2​O4​( g)+O2​( g)… Includes table
    Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
  22. Q22.The standard enthalpy and standard entropy of decomposition of N2​O4​ to NO2​ are 55.0 kJ mol−1 and 175.0 J/K/mol respectively. The standard free…
    Chemistry · Thermodynamics · Numerical
  23. Q23.If 1 mM solution of ethylamine produces pH=9, then the ionization constant (Kb​) of ethylamine is 10−x. The value of x is ​ (nearest integer). [The degree of…
    Chemistry · Ionic Equilibrium · Numerical
  24. Q24.Consider the following sequence of reactions to produce major product (A) ​ Molar mass of product (A) is g mol−1.  (Given molar mass in g mol−1 of C:12,H:1,O:16,Br:80, N:14,P:31 ) ​… Includes diagram
    Chemistry · Compounds Containing Nitrogen · Numerical
  25. Q25.During " S " estimation, 160 mg of an organic compound gives 466 mg of barium sulphate. The percentage of Sulphur in the given compound is ​ %. (Given molar mass in g mol−1 of Ba:137, S:32,O:16…
    Chemistry · Some Basic Concepts of Chemistry · Numerical