Chemistry · 2021 · 16 Mar · Shift 1
22 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 · 16 Mar · Shift 1
22 questions from this JEE Main paper
Aldehydes Ketones and Carboxylic Acids2 questionsChemical Bonding and Molecular Structure1 questionsCompounds Containing Nitrogen2 questionsD and F Block Elements2 questionsBasics of Organic Chemistry2 questionsP Block Elements1 questionsHydrocarbons1 questionsBiomolecules1 questionsHaloalkanes and Haloarenes1 questionsCoordination Compounds1 questionsIonic Equilibrium1 questionsSome Basic Concepts of Chemistry3 questionsChemical Equilibrium1 questionsSolutions1 questionsStructure of Atom1 questionsChemical Kinetics and Nuclear Chemistry1 questions
- Q1.The product ''P'' in the above reaction is : Includes diagramChemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
- Q2.Given below are two statements : one is labeled as Assertion A and the other is labelled as Reason R : Assertion A : The H O H bond angle in water molecule is 104.5 . Reason R : The lone pair - lone pair repulsion of…Chemistry · Chemical Bonding and Molecular Structure · MCQ
- Q3.In the above chemical reaction, intermediate ''X'' and reagent/condition ''A'' are : Includes diagramChemistry · Compounds Containing Nitrogen · MCQ
- Q4.Assertion A : Enol form of acetone [] exists in < 0.1% quantity. However, the enol form of acetyl acetone [] exists in approximately 15% quantity. Reason R : Enol form of acetyl acetone is stabilized by…Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
- Q5.Given below are two statements : Statement I : The Eo value for / is + 1.74 V. Statement II : Ce is more stable in state than state. In the light of the above statements, choose the most appropriate…Chemistry · D and F Block Elements · MCQ
- Q6.In chromotography technique, the purification of compound is independent of :Chemistry · Basics of Organic Chemistry · MCQ
- Q7.A group of 15 element, which is a metal and forms a hydride with strongest reducing power among group 15 hydrides. The element is :Chemistry · P Block Elements · MCQ
- Q8.Among the following, the aromatic compounds are : Choose the correct answer from the following options : Includes diagramChemistry · Basics of Organic Chemistry · MCQ
- Q9.Which of the following reactions DOES NOT involve Hoffmann bromamide degradation?Chemistry · Compounds Containing Nitrogen · MCQ
- Q10.Which of the following is Lindlar catalyst?Chemistry · Hydrocarbons · MCQ
- Q11.Which among the following pairs of Vitamins is stored in our body relatively for longer duration?Chemistry · Biomolecules · MCQ
- Q12.Given below are two statement : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : Size of ion is less than ion. Reason R : The above is a consequence of the lanthanoid contraction. In…Chemistry · D and F Block Elements · MCQ
- Q13.The products ''A'' and ''B'' formed in above reactions are : Includes diagramChemistry · Haloalkanes and Haloarenes · MCQ
- Q14.The equivalents of ethylene diamine required to replace the neutral ligands from the coordination sphere of the trans-complex of . 4 is . (Round off to the Nearest Integer).Chemistry · Coordination Compounds · Numerical
- Q15.Two salts and have the same value of solubility product of 4.0 10 12. The ratio of their molar solubilities i.e. = . (Round off to the Nearest Integer)Chemistry · Ionic Equilibrium · Numerical
- Q16.Complete combustion of 750 g of an organic compound provides 420 g of and 210 g of . The percentage composition of carbon and hydrogen in organic compound is 15.3 and respectively. (Round off to the…Chemistry · Some Basic Concepts of Chemistry · Numerical
- Q17.For the reaction at 495 K, rG = 9.478 kJ mol 1. If we start the reaction in a closed container at 495 K with 22 millimoles of A, the amount of B in the equilibrium mixture is …Chemistry · Chemical Equilibrium · Numerical
- Q18. If the above equation is balanced with integer coefficients, the value of c is . (Round off to the Nearest Integer).Chemistry · Some Basic Concepts of Chemistry · Numerical
- Q19.A 6.50 molal solution of KOH (aq.) has a density of 1.89 g cm 3. The molarity of the solution is mol dm 3. (Round off to the Nearest Integer). [Atomic masses : K : 39.0 u; O : 16.0 u; H : 1.0 u]Chemistry · Some Basic Concepts of Chemistry · Numerical
- Q20. is 10% dissociated in water to and B . The boiling point of a 10.0 molal aqueous solution of is C. (Round off to the Nearest Integer). [Given : Molal elevation constant of water…Chemistry · Solutions · Numerical
- Q21.When light of wavelength 248 nm falls on a metal of threshold energy 3.0 eV, the de-Broglie wavelength of emitted electrons is . (Round off to the Nearest Integer). [ Use : = 1.73, h =…Chemistry · Structure of Atom · Numerical
- Q22.The decomposition of formic acid on gold surface follows first order kinetics. If the rate constant at 300 K is 1.0 10 3 s 1 and the activation energy Ea = 11.488 kJ mol 1, the rate constant at 200 K is …Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical