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Chemistry · 2021 · 27 Jul · Shift 1

22 questions from this JEE Main paper
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Chemistry · 2021 · 27 Jul · Shift 1

22 questions from this JEE Main paper

Aldehydes Ketones and Carboxylic Acids1 questionsRedox Reactions1 questionsChemical Kinetics and Nuclear Chemistry1 questionsCompounds Containing Nitrogen2 questionsCoordination Compounds3 questionsHydrocarbons1 questionsBiomolecules2 questionsAlcohols Phenols and Ethers1 questionsBasics of Organic Chemistry2 questionsPeriodic Table and Periodicity1 questionsSome Basic Concepts of Chemistry1 questionsElectrochemistry1 questionsSolutions1 questionsPractical Organic Chemistry1 questionsThermodynamics1 questionsChemical Equilibrium1 questionsChemical Bonding and Molecular Structure1 questions
  1. Q1.Which one of the following compounds will give orange precipitate when treated with 2, 4-dinitrophenyl hydrazine?
    Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
  2. Q2.The oxidation states of 'P' in H4​P2​O7​, H4​P2​O5​ and H4​P2​O6​, respectively, are :
    Chemistry · Redox Reactions · MCQ
  3. Q3.For a reaction of order n, the unit of the rate constant is :
    Chemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
  4. Q4.Given below are two statements : Statement I : Aniline is less basic than acetamide. Statement II : In aniline, the lone pair of electrons on nitrogen atom is delocalized over benzene ring due to resonance and hence less available to a…
    Chemistry · Compounds Containing Nitrogen · MCQ
  5. Q5.The type of hybridisation and magnetic property of the complex [MnCl6​]3−, respectively, are :
    Chemistry · Coordination Compounds · MCQ
  6. Q6.The number of geometrical isomers found in the metal complexes [PtCl2​(NH3​)2​], [Ni(CO)4​], [Ru(H2​O)3​Cl3​ and [CoCl2​(NH3​)4​]+ respectively, are :
    Chemistry · Coordination Compounds · MCQ
  7. Q7.Presence of which reagent will affect the reversibility of the following reaction, and change it to a irreversible reaction : CH4​ + I2​ $$\mathrel{\mathop{\kern0pt\rightleftharpoons} \limits_{{\mathop{\rm Re} olimits}…
    Chemistry · Hydrocarbons · MCQ
  8. Q8.Which one among the following chemical tests is used to distinguish monosaccharide from disaccharide?
    Chemistry · Biomolecules · MCQ
  9. Q9.Consider the above reaction and identify the Product P : Includes diagram
    Chemistry · Alcohols Phenols and Ethers · MCQ
  10. Q10.The compound 'A' is a complementary base of ​ in DNA stands. Includes diagram
    Chemistry · Biomolecules · MCQ
  11. Q11.Staggered and eclipsed conformers of ethane are :
    Chemistry · Basics of Organic Chemistry · MCQ
  12. Q12.Match List - I with List - II : Choose the most appropriate answer from the options given below Includes table
    Chemistry · Periodic Table and Periodicity · MCQ
  13. Q13.The correct order of stability of given carbocation is : Includes diagram
    Chemistry · Basics of Organic Chemistry · MCQ
  14. Q14.The density of NaOH solution is 1.2 g cm − 3. The molality of this solution is ​ m. (Round off to the Nearest Integer) [Use : Atomic mass : Na : 23.0 u, O : 16.0 u, H : 1.0 u, Density of H2​O : 1.0 g cm − 3]
    Chemistry · Some Basic Concepts of Chemistry · Numerical
  15. Q15.The conductivity of a weak acid HA of concentration 0.001 mol L − 1 is 2.0 × 10 − 5 S cm − 1. If Λmo​(HA) = 190 S cm2 mol − 1, the ionization constant (Ka) of HA is equal to ​× 10 −…
    Chemistry · Electrochemistry · Numerical
  16. Q16.1.46 g of a biopolymer dissolved in a 100 mL water at 300 K exerted an osmotic pressure of 2.42 × 10 − 3 bar. The molar mass of the biopolymer is ​× 104 g mol − 1. (Round off to the Nearest Integer)…
    Chemistry · Solutions · Numerical
  17. Q17.An organic compound is subjected to chlorination to get compound A using 5.0 g of chlorine. When 0.5 g of compound A is reacted with AgNO3​ [Carius Method], the percentage of chlorine in compound A is ​ when it…
    Chemistry · Practical Organic Chemistry · Numerical
  18. Q18.The number of geometrical isomers possible in triamminetrinitrocobalt (III) is X and in trioxalatochromate (III) is Y. Then the value of X + Y is ​.
    Chemistry · Coordination Compounds · Numerical
  19. Q19.In gaseous triethyl amine the "− C − N − C −" bond angle is ​ degree.
    Chemistry · Compounds Containing Nitrogen · Numerical
  20. Q20.For water at 100 ∘ C and 1 bar, Δ vap H −Δ vap U = ​× 102 J mol − 1. (Round off to the Nearest Integer) [Use : R = 8.31 J mol − 1 K − 1] [Assume volume of H2​O(l) is much smaller…
    Chemistry · Thermodynamics · Numerical
  21. Q21.PCl5​ ⇌ PCl3​ + Cl2​ Kc = 1.844 3.0 moles of PCl5​ is introduced in a 1 L closed reaction vessel at 380 K. The number of moles of PCl5​ at equilibrium is ​× 10 − 3. (Round…
    Chemistry · Chemical Equilibrium · Numerical
  22. Q22.The difference between bond orders of CO and NO ⊕ is 2x​ where x = ​. (Round off to the Nearest Integer)
    Chemistry · Chemical Bonding and Molecular Structure · Numerical