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Chemistry · 2022 · 24 Jun · Shift 2

21 questions from this JEE Main paper
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Chemistry · 2022 · 24 Jun · Shift 2

21 questions from this JEE Main paper

Some Basic Concepts of Chemistry1 questionsStructure of Atom1 questionsChemical Bonding and Molecular Structure1 questionsThermodynamics1 questionsChemical Kinetics and Nuclear Chemistry1 questionsD and F Block Elements2 questionsP Block Elements1 questionsCoordination Compounds1 questionsBasics of Organic Chemistry1 questionsHydrocarbons2 questionsAlcohols Phenols and Ethers1 questionsCompounds Containing Nitrogen1 questionsSalt Analysis1 questionsSolutions1 questionsChemical Equilibrium1 questionsElectrochemistry1 questionsPractical Organic Chemistry1 questionsHaloalkanes and Haloarenes1 questionsBiomolecules1 questions
  1. Q1.120 g of an organic compound that contains only carbon and hydrogen gives 330 g of CO2​ and 270 g of water on complete combustion. The percentage of carbon and hydrogen, respectively are
    Chemistry · Some Basic Concepts of Chemistry · MCQ
  2. Q2.The energy of one mole of photons of radiation of wavelength 300 nm is (Given : h = 6.63 × 10 − 34 J s, NA = 6.02 × 1023 mol − 1, c = 3 × 108 m s − 1)
    Chemistry · Structure of Atom · MCQ
  3. Q3.The correct order of bond orders of C2​2−, N2​2− and O2​2− is, respectively
    Chemistry · Chemical Bonding and Molecular Structure · MCQ
  4. Q4.At 25 ∘ C and 1 atm pressure, the enthalpies of combustion are as given below : The enthalpy of formation of ethane is Includes table
    Chemistry · Thermodynamics · MCQ
  5. Q5.For a first order reaction, the time required for completion of 90% reaction is 'x' times the half life of the reaction. The value of 'x' is (Given : ln 10 = 2.303 and log 2 = 0.3010)
    Chemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
  6. Q6.Metals generally melt at very high temperature. Amongst the following, the metal with the highest melting point will be :
    Chemistry · D and F Block Elements · MCQ
  7. Q7.PCl5​ is well known, but NCl5​ is not. because,
    Chemistry · P Block Elements · MCQ
  8. Q8.Transition metal complex with highest value of crystal field splitting (Δ 0) will be :
    Chemistry · Coordination Compounds · MCQ
  9. Q9.Arrange the following carbocations in decreasing order of stability. Includes diagram
    Chemistry · Basics of Organic Chemistry · MCQ
  10. Q10.Given below are two statements : Statement I : The presence of weaker π-bonds make alkenes less stable than alkanes. Statement II : The strength of the double bond is greater than that of carbon-carbon single bond. In the light of the…
    Chemistry · Hydrocarbons · MCQ
  11. Q11.Which of the following reagents / reactions will convert 'A' to 'B' ? Includes diagram
    Chemistry · Hydrocarbons · MCQ
  12. Q12.Hex-4-ene-2-ol on treatment with PCC gives 'A'. 'A' on reaction with sodium hypoiodite gives 'B', which on further heating with soda lime gives 'C'. The compound 'C' is :
    Chemistry · Alcohols Phenols and Ethers · MCQ
  13. Q13.The conversion of propan-1-ol to n-butylamine involves the sequential addition of reagents. The correct sequential order of reagents is
    Chemistry · Compounds Containing Nitrogen · MCQ
  14. Q14.In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the following cations may be present?
    Chemistry · Salt Analysis · MCQ
  15. Q15.A company dissolves 'x' amount of CO2​ at 298 K in 1 litre of water to prepare soda water. X = ​× 10 − 3 g. (nearest integer) (Given : partial pressure of CO2​ at 298 K = 0.835 bar. Henry's law constant…
    Chemistry · Solutions · Numerical
  16. Q16.PCl5​ dissociates as PCl5​(g) ⇌ PCl3​(g) + Cl2​(g) 5 moles of PCl5​ are placed in a 200 litre vessel which contains 2 moles of N2​ and is maintained at 600 K. The equilibrium pressure is 2.46 atm. The…
    Chemistry · Chemical Equilibrium · Numerical
  17. Q17.The resistance of a conductivity cell containing 0.01 M KCl solution at 298 K is 1750 Ω. If the conductivity of 0.01 M KCl solution at 298 K is 0.152 × 10 − 3 S cm − 1, then the cell constant of the conductivity cell is ​×…
    Chemistry · Electrochemistry · Numerical
  18. Q18.Manganese (VI) has ability to disproportionate in acidic solution. The difference in oxidation states of two ions it forms in acidic solution is ​.
    Chemistry · D and F Block Elements · Numerical
  19. Q19.0.2 g of an organic compound was subjected to estimation of nitrogen by Dumas method in which volume of N2​ evolved (at STP) was found to be 22.400 mL. The percentage of nitrogen in the compound is ​. [nearest…
    Chemistry · Practical Organic Chemistry · Numerical
  20. Q20.Consider the above reaction. The number of π electrons present in the product 'P' is ​. Includes diagram
    Chemistry · Haloalkanes and Haloarenes · Numerical
  21. Q21.In alanylglycyl leucyl alanyl valine, the number of peptide linkages is ​.
    Chemistry · Biomolecules · Numerical