Chemistry · 2021 · 18 Mar · Shift 1
24 questions from this JEE Main paperGuest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
Chemistry · 2021 · 18 Mar · Shift 1
24 questions from this JEE Main paper
Compounds Containing Nitrogen1 questionsPeriodic Table and Periodicity1 questionsHaloalkanes and Haloarenes1 questionsPractical Organic Chemistry1 questionsBiomolecules1 questionsAldehydes Ketones and Carboxylic Acids2 questionsD and F Block Elements1 questionsHydrocarbons1 questionsBasics of Organic Chemistry1 questionsCoordination Compounds2 questionsStructure of Atom1 questionsP Block Elements1 questionsIonic Equilibrium2 questionsChemical Bonding and Molecular Structure1 questionsChemical Kinetics and Nuclear Chemistry1 questionsThermodynamics1 questionsSome Basic Concepts of Chemistry3 questionsSolutions1 questionsElectrochemistry1 questions
- Q1.Considering the above reaction, X and Y respectively are : Includes diagramChemistry · Compounds Containing Nitrogen · MCQ
- Q2.The ionic radius of ions is 1.02 . The ionic radii (in ) of and , respectively, areChemistry · Periodic Table and Periodicity · MCQ
- Q3.Reaction of Grignard reagent, with followed by hydrolysis gives compound "A" which reacts instantly with Lucas reagent to give compound B, . The Compound B is :Chemistry · Haloalkanes and Haloarenes · MCQ
- Q4.Reagent, 1-napthylamine and sulphanilic acid in acetic acid is used for the detection ofChemistry · Practical Organic Chemistry · MCQ
- Q5.A non-reducing sugar "A" hydrolyses to give two reducing mono saccharides. Sugar A isChemistry · Biomolecules · MCQ
- Q6.Consider the above chemical reaction and identify product "A" Includes diagramChemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
- Q7.Match List - I with List - II Choose the most appropriate answer from the options given below : Includes tableChemistry · D and F Block Elements · MCQ
- Q8.Match List - I with List - II : List - I (Chemicals) (a) Alcoholic potassium hydroxide (b) Pd/ (c) BHC (Benzene hexachloride) (d) Polyacetylene List - II (Use / Preparation / Constituent) (i) Electrodes in batteries (ii) Obtained…Chemistry · Hydrocarbons · MCQ
- Q9.Compound with molecular formula can show :Chemistry · Basics of Organic Chemistry · MCQ
- Q10.The correct structures of trans-[] and meridonial-[], respectively, areChemistry · Coordination Compounds · MCQ
- Q11.A certain orbital has no angular nodes and two radial nodes. The orbital is :Chemistry · Structure of Atom · MCQ
- Q12.Considering the above chemical reaction, identify the product "X" : Includes diagramChemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
- Q13.Match List - I with List - II Choose the most appropriate answer from the options given below : Includes tableChemistry · P Block Elements · MCQ
- Q14.Given below are two statements : One is labelled as Assertion A and the other labelled as reason R Assertion A : During the boiling of water having temporary hardness, is converted to . Reason R : The solubility…Chemistry · Ionic Equilibrium · MCQ
- Q15.AX is a covalent diatomic molecule where A and X are second row elements of periodic table. Based on Molecular orbital theory, the bond order of AX is 2.5. The total number of electrons in AX is . (Round off to…Chemistry · Chemical Bonding and Molecular Structure · Numerical
- Q16.In order to prepare a buffer solution of pH 5.74, sodium acetate is added to acetic acid. If the concentration of acetic acid in the buffer is 1.0 M, the concentration of sodium acetate in the buffer is M. (Round…Chemistry · Ionic Equilibrium · Numerical
- Q17.2NO(g) + Cl2(g) 2NOCl(s) This reaction was studied at 10 and the following data was obtained and are the initial concentrations and r0 is the initial reaction rate. The overall… Includes tableChemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
- Q18.For the reaction + the reaction enthalpy rH = kJ mol 1. (Round off to the Nearest Integer). [ Given : Bond enthalpies in kJ mol 1 : C-C : 347, C = C : 611; C-H :…Chemistry · Thermodynamics · Numerical
- Q19. grams of 3-Hydroxy propanal (MW = 74) must be dehydrated to produce 7.8 g of acrolein (MW = 56) () if the percentage yield is 64. (Round off to the Nearest Integer). [Given : Atomic masses : C : 12.0 u,…Chemistry · Some Basic Concepts of Chemistry · Numerical
- Q20.A reaction of 0.1 mole of Benzylamine with bromomethane gave 23 g of Benzyl trimethyl ammonium bromide. The number of moles of bromomethane consumed in this reaction are n 10 1, when n = . (Round off…Chemistry · Some Basic Concepts of Chemistry · Numerical
- Q21.The total number of unpaired electrons present in the complex is .Chemistry · Coordination Compounds · Numerical
- Q22.2 molal solution of a weak acid HA has a freezing point of 3.885 C. The degree of dissociation of this acid is 10 3. (Round off to the Nearest Integer). [Given : Molal depression constant of…Chemistry · Solutions · Numerical
- Q23.For the reaction 2(aq) + 2 (aq) 2(aq) + (s) the magnitude of the standard molar Gibbs free energy change, rG = kJ (Round off to the Nearest Integer). …Chemistry · Electrochemistry · Numerical
- Q24.Complete combustion of 3g of ethane gives x 1022 molecules of water. The value of x is . (Round off to the Nearest Integer). [Use : NA = 6.023 1023; Atomic masses in u : C : 12.0; O : 16.0; H :…Chemistry · Some Basic Concepts of Chemistry · Numerical