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Chemistry · 2025 · 24 Jan · Shift 1

25 questions from this JEE Main paper
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Chemistry · 2025 · 24 Jan · Shift 1

25 questions from this JEE Main paper

Chemical Kinetics and Nuclear Chemistry1 questionsP Block Elements1 questionsCompounds Containing Nitrogen1 questionsSolutions1 questionsHaloalkanes and Haloarenes2 questionsD and F Block Elements2 questionsBasics of Organic Chemistry1 questionsHydrocarbons1 questionsIonic Equilibrium1 questionsChemical Bonding and Molecular Structure2 questionsPeriodic Table and Periodicity1 questionsCoordination Compounds1 questionsThermodynamics2 questionsAldehydes Ketones and Carboxylic Acids2 questionsBiomolecules1 questionsElectrochemistry1 questionsChemical Equilibrium1 questionsSalt Analysis1 questionsSome Basic Concepts of Chemistry2 questions
  1. Q1.For a reaction, N2​O5( g)​→2NO2( g)​+21​O2( g)​ in a constant volume container, no products were present initially. The final pressure of the…
    Chemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
  2. Q2.The large difference between the melting and boiling points of oxygen and sulphur may be explained on the basis of
    Chemistry · P Block Elements · MCQ
  3. Q3.Given below are two statements I and II. Statement I : Dumas method is used for estimation of "Nitrogen" in an organic compound. Statement II : Dumas method involves the formation of ammonium sulphate by heating the organic compound with…
    Chemistry · Compounds Containing Nitrogen · MCQ
  4. Q4.Consider the given plots of vapour pressure (VP) vs temperature(T/K). Which amongst the following options is correct graphical representation showing ΔTf​, depression in the freezing point of a solvent in a…
    Chemistry · Solutions · MCQ
  5. Q5.Given below are two statements: Statement I: The conversion proceeds well in the less polar medium. CH3​−CH2​−CH2​−CH2​−ClHO−​CH3​−CH2​−CH2​−CH2​−OH+Cl(−)… Includes diagram
    Chemistry · Haloalkanes and Haloarenes · MCQ
  6. Q6.Preparation of potassium permanganate from MnO2​ involves two step process in which the 1st step is a reaction with KOH and KNO3​ to produce
    Chemistry · D and F Block Elements · MCQ
  7. Q7.Which one of the carbocations from the following is most stable?
    Chemistry · Basics of Organic Chemistry · MCQ
  8. Q8.The product (A) formed in the following reaction sequence is Includes diagram
    Chemistry · Hydrocarbons · MCQ
  9. Q9.Ksp​ for Cr(OH)3​ is 1.6×10−30. What is the molar solubility of this salt in water?
    Chemistry · Ionic Equilibrium · MCQ
  10. Q10.Which of the following linear combination of atomic orbitals will lead to formation of molecular orbitals in homonuclear diatomic molecules [internuclear axis in z-direction] ? A. 2pz​ and 2px​…
    Chemistry · Chemical Bonding and Molecular Structure · MCQ
  11. Q11.Which of the following statements are NOT true about the periodic table? A. The properties of elements are function of atomic weights. B. The properties of elements are function of atomic numbers. C. Elements having similar outer…
    Chemistry · Periodic Table and Periodicity · MCQ
  12. Q12.One mole of the octahedral complex compound Co(NH3​)5​Cl3​ gives 3 moles of ions on dissolution in water. One mole of the same complex reacts with excess of AgNO3​ solution to yield two…
    Chemistry · Coordination Compounds · MCQ
  13. Q13.Which of the following statement is true with respect to H2​O,NH3​ and CH4​? A. The central atoms of all the molecules are sp3 hybridized. B. The H−O−H,H−N−H…
    Chemistry · Chemical Bonding and Molecular Structure · MCQ
  14. Q14.Let us consider an endothermic reaction which is non-spontaneous at the freezing point of water. However, the reaction is spontaneous at boiling point of water. Choose the correct option.
    Chemistry · Thermodynamics · MCQ
  15. Q15.Which of the following arrangements with respect to their reactivity in nucleophilic addition reaction is correct?
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  16. Q16.The carbohydrate "Ribose" present in DNA, is A. A pentose sugar B. present in pyranose from C. in "D" configuration D. a reducing sugar, when free E. in ∝-anomeric form Choose the correct answer from the options given below:
    Chemistry · Biomolecules · MCQ
  17. Q17.Aman has been asked to synthesise the molecule He thought of preparing the molecule using an aldol condensation reaction. He found a few cyclic alkenes in his laboratory. He thought of performing ozonolysis reaction on alkene to produce a… Includes diagram
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  18. Q18.For the given cell Fe2+(aq)+Ag(aq)+​→Fe3+(aq)+Ag(s)​ The standard cell potential of the above reaction is Given: Ag++e−→AgFe2++2e−→FeFe3++3e−→Fe​Eθ=xVEθ=yVEθ=zV​…
    Chemistry · Electrochemistry · MCQ
  19. Q19.Following are the four molecules "P", "Q", "R" and "S". Which one among the four molecules will react with H−Br(aq)​ at the fastest rate? Includes diagram
    Chemistry · Haloalkanes and Haloarenes · MCQ
  20. Q20.Which of the following ions is the strongest oxidizing agent? (Atomic Number of Ce=58,Eu=63, Tb=65,Lu=71)
    Chemistry · D and F Block Elements · MCQ
  21. Q21.37.8 g N2​O5​ was taken in a 1 L reaction vessel and allowed to undergo the following reaction at 500 K 2 N2​O5( g)​⇌2 N2​O4( g)​+O2( g)​…
    Chemistry · Chemical Equilibrium · Numerical
  22. Q22.Among the following cations, the number of cations which will give characteristic precipitate in their identification tests with K4​[Fe(CN)6​] is ​. Cu2+,Fe3+,Ba2+,Ca2+,NH4+​,Mg2+,Zn2+…
    Chemistry · Salt Analysis · Numerical
  23. Q23.Consider the following reaction occurring in the blast furnace: Fe3​O4( s)​+4CO(g)​→3Fe(l)​+4CO2( g)​'x' kg of iron is produced…
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  24. Q24.Xg of benzoic acid on reaction with aq NaHCO3​ released CO2​ that occupied 11.2 L volume at STP. X is ​ g.
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  25. Q25.Standard entropies of X2​,Y2​ and XY5​ are 70, 50 and 110 J K−1 mol−1 respectively. The temperature in Kelvin at which the reaction 21​X2​+25​Y2​⇌XY5​ΔH⊖=−35 kJ mol−1…
    Chemistry · Thermodynamics · Numerical