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Chemistry · 2025 · 29 Jan · Shift 1

25 questions from this JEE Main paper
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Chemistry · 2025 · 29 Jan · Shift 1

25 questions from this JEE Main paper

Solutions2 questionsElectrochemistry3 questionsBiomolecules1 questionsCoordination Compounds2 questionsThermodynamics1 questionsD and F Block Elements2 questionsChemical Kinetics and Nuclear Chemistry1 questionsStructure of Atom1 questionsSome Basic Concepts of Chemistry1 questionsCompounds Containing Nitrogen3 questionsChemical Equilibrium1 questionsAldehydes Ketones and Carboxylic Acids1 questionsBasics of Organic Chemistry2 questionsPeriodic Table and Periodicity2 questionsAlcohols Phenols and Ethers1 questionsHydrocarbons1 questions
  1. Q1.1.24 g of AX2​ (molar mass 124 g mol−1) is dissolved in 1 kg of water to form a solution with boiling point of 100.015°C, while 25.4 g of AY2​ (molar mass 250 g mol−1) in 2 kg of water constitutes a solution with a boiling point of…
    Chemistry · Solutions · MCQ
  2. Q2.For a Mg | Mg2+ (aq) || Ag+ (aq) | Ag the correct Nernst Equation is :
    Chemistry · Electrochemistry · MCQ
  3. Q3.Match List - I with List - II. Choose the correct answer from the options given below : Includes table
    Chemistry · Biomolecules · MCQ
  4. Q4.The correct increasing order of stability of the complexes based on Δ0​ value is : I. [Mn(CN)6​]3− II. [Co(CN)6​]4− III. [Fe(CN)6​]4− IV. [Fe(CN)6​]3−
    Chemistry · Coordination Compounds · MCQ
  5. Q5.500 J of energy is transferred as heat to 0.5 mol of Argon gas at 298 K and 1.00 atm. The final temperature and the change in internal energy respectively are: Given: R = 8.3 J K-1 mol-1
    Chemistry · Thermodynamics · MCQ
  6. Q6.The molar conductivity of a weak electrolyte when plotted against the square root of its concentration, which of the following is expected to be observed?
    Chemistry · Electrochemistry · MCQ
  7. Q7.The correct option with order of melting points of the pairs (Mn, Fe), (Tc, Ru) and (Re, Os) is :
    Chemistry · D and F Block Elements · MCQ
  8. Q8.The reaction A2​+B2​→2AB follows the mechanism: A2​k−1​⇌​k1​​A+A(fast) A+B2​k2​​AB+B(slow) A+B→AB (fast) The overall order of the reaction…
    Chemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
  9. Q9.If a 0 is denoted as the Bohr radius of hydrogen atom, then what is the de-Broglie wavelength (λ) of the electron present in the second orbit of hydrogen atom? [n : any integer]
    Chemistry · Structure of Atom · MCQ
  10. Q10.The standard reduction potential values of some of the p-block ions are given below. Predict the one with the strongest oxidising capacity.
    Chemistry · Electrochemistry · MCQ
  11. Q11.Choose the correct statements. (A) Weight of a substance is the amount of matter present in it. (B) Mass is the force exerted by gravity on an object. (C) Volume is the amount of space occupied by a substance. (D) Temperatures below 0°C…
    Chemistry · Some Basic Concepts of Chemistry · MCQ
  12. Q12.In the following substitution reaction : Product 'P' formed is : Includes diagram
    Chemistry · Compounds Containing Nitrogen · MCQ
  13. Q13.At temperature T, compound AB2(g)​ dissociates as AB2(g)​⇌AB(g)​+21​B2(g)​ having degree of dissociation x(small compared to unity). The correct expression for x in terms of Kp​ and p is:
    Chemistry · Chemical Equilibrium · MCQ
  14. Q14.Match List - I with List - II. Choose the correct answer from the options given below : Includes table
    Chemistry · Coordination Compounds · MCQ
  15. Q15.The product (P) formed in the following reaction is : Includes diagram
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  16. Q16.The steam volatile compounds among the following are :  Choose the correct answer from the options given below :  Includes diagram
    Chemistry · Compounds Containing Nitrogen · MCQ
  17. Q17.Match List - I with List - II. Choose the correct answer from the options given below : Includes table Includes diagram
    Chemistry · Basics of Organic Chemistry · MCQ
  18. Q18.Total number of nucleophiles from the following is : Includes diagram
    Chemistry · Basics of Organic Chemistry · MCQ
  19. Q19.An element ‘E’ has the ionisation enthalpy value of 374 kJ mol⁻¹. ‘E’ reacts with elements A, B, C and D with electron gain enthalpy values of −328, −349, −325 and −295 kJ mol⁻¹, respectively. The correct order of the products EA, EB, EC…
    Chemistry · Periodic Table and Periodicity · MCQ
  20. Q20.Given below are two statements : Statement (I) : The radii of isoelectronic species increases in the order. Mg2+ < Na+ < F − < O2− Statement (II) : The magnitude of electron gain enthalpy of halogen decreases in the…
    Chemistry · Periodic Table and Periodicity · MCQ
  21. Q21.The molar mass of the water insoluble product formed from the fusion of chromite ore (FeCr₂O₄) with Na₂CO₃ in presence of O₂ is ​ g mol⁻¹.
    Chemistry · D and F Block Elements · Numerical
  22. Q22.Given below are some nitrogen containing compounds : Each of them is treated with HCl separately. 1.0 g of the most basic compound will consume ​ mg of HCl. (Given molar mass in g mol−1 C : 12, H : 1, O : 16, Cl :… Includes diagram
    Chemistry · Compounds Containing Nitrogen · Numerical
  23. Q23.If A2​B is 30% ionised in an aqueous solution, then the value of van't Hoff factor (i) is ​ × 10−1.
    Chemistry · Solutions · Numerical
  24. Q24.0.1 mole of compound ‘S’ will weigh ​ g. (Given molar mass in g mol−1 C : 12, H : 1, O : 16) Includes diagram
    Chemistry · Alcohols Phenols and Ethers · Numerical
  25. Q25.The sum of sigma (σ) and pi (π) bonds in Hex-1,3-dien-5-yne is ​.
    Chemistry · Hydrocarbons · Numerical