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Chemistry · 2020 · 7 Jan · Shift 2

20 questions from this JEE Main paper
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Chemistry · 2020 · 7 Jan · Shift 2

20 questions from this JEE Main paper

Solutions1 questionsCoordination Compounds2 questionsCompounds Containing Nitrogen1 questionsSome Basic Concepts of Chemistry2 questionsPeriodic Table and Periodicity1 questionsBiomolecules1 questionsBasics of Organic Chemistry1 questionsRedox Reactions1 questionsHydrocarbons1 questionsHaloalkanes and Haloarenes2 questionsChemical Bonding and Molecular Structure1 questionsElectrochemistry1 questionsAlcohols Phenols and Ethers1 questionsChemical Kinetics and Nuclear Chemistry1 questionsIonic Equilibrium1 questionsThermodynamics1 questionsD and F Block Elements1 questions
  1. Q1.Two open beakers one containing a solvent and the other containing a mixture of that solvent with a non voltatile solute are together selated in a container. Over time :
    Chemistry · Solutions · MCQ
  2. Q2.Among the statements(a)-(d) the incorrect ones are : (a) Octahedral CO(III) complexes with strong fields ligands have very high magnetic moments. (b) When Δ 0 < P, the d-electron configuration of Co(III) in an octahedral complex…
    Chemistry · Coordination Compounds · MCQ
  3. Q3.In the following reaction sequence, The major product B is : Includes diagram
    Chemistry · Compounds Containing Nitrogen · MCQ
  4. Q4.The ammonia (NH3​) released on quantitative reaction of 0.6 g urea (NH2​CONH2​) with sodium hydroxide (NaOH) can be neutralized by :
    Chemistry · Some Basic Concepts of Chemistry · MCQ
  5. Q5.Within each pair of elements F & Cl, S & Se, and Li & Na, respectively, the elements that release more energy upon and electron gain are :
    Chemistry · Periodic Table and Periodicity · MCQ
  6. Q6.Which of the following statements is correct ?
    Chemistry · Biomolecules · MCQ
  7. Q7.A chromatography column, packed with silica gel as stationary phase, was used to separate a mixture of compounds consisting of (A) benzanilide (B) aniline and (C) acetophenone. When the column is eluted with a mixture of solvents, hexane :…
    Chemistry · Basics of Organic Chemistry · MCQ
  8. Q8.The redox reaction among the following is :
    Chemistry · Redox Reactions · MCQ
  9. Q9.In the following reactions sequence, structure of A and B respectively will be : Includes diagram
    Chemistry · Hydrocarbons · MCQ
  10. Q10.For the following reactions Ks and Ke, are respectively, the rate constants for substitution and elimination and μ=ke​ks​​ the correct options is Includes diagram
    Chemistry · Haloalkanes and Haloarenes · MCQ
  11. Q11.The number of possible optical isomers for the complexes MA2B2 with sp3 and dsp2 hydridized metal atom. respectively, is : Note : A and B are unidentate netural and unidentate monoanionic ligands, respectively.
    Chemistry · Coordination Compounds · MCQ
  12. Q12.The bond order and the magnetic characteristics of CN− are :
    Chemistry · Chemical Bonding and Molecular Structure · MCQ
  13. Q13.The equation that is incorrect is :
    Chemistry · Electrochemistry · MCQ
  14. Q14.The correct order of stability for the following alkoxides is : Includes diagram
    Chemistry · Alcohols Phenols and Ethers · MCQ
  15. Q15.For the reaction 2H2​(g) + 2NO(g) → N2​(g) + 2H2​O(g) the observed rate expression is, rate = Kf[NO]2[H2​]. The rate expression for the reverse reaction is :
    Chemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
  16. Q16.Consider the following reactions : Which of these reactions are possible ? Includes diagram
    Chemistry · Haloalkanes and Haloarenes · MCQ
  17. Q17.The flocculation value of HCl for arsenic sulphide sol. is 30 m mol L-1 If H2​SO4​ is used for the flocculatiopn of arsenic sulphide, the amount in grams, of H2​SO4​ in 250 ml required for the above purposed is ​…
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  18. Q18.3 g of acetic acid is added to 250 mL of 0.1 M HCL and the solution made up to 500 mL. To 20 mL of this solutions 21​ mL of 5 M NaOH is added. The pH of the solution is ​. [Given : pKa of acetic acid =…
    Chemistry · Ionic Equilibrium · Numerical
  19. Q19.The standard heat of formation (Δf​H2980​) of ethane (in kj/mol), if the heat of combustion of ethane, hydrogen and graphite are - 1560, -393.5 and -286 Kj/mol, respectively is :
    Chemistry · Thermodynamics · Numerical
  20. Q20.Consider the following reactions : NaCl+K2​Cr2​O7​+(conc.)H2​SO4​​→ (A) + side products (A) + NaOH → (B) + Side products (B)+(dilute)H2​SO4​​+H2​O2​…
    Chemistry · D and F Block Elements · Numerical