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Chemistry · 2020 · 2 Sep · Shift 1

19 questions from this JEE Main paper

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2020 · 2 Sep · Shift 1
Chemistry

Chemistry · 2020 · 2 Sep · Shift 1

19 questions from this JEE Main paper

Thermodynamics1 questions Coordination Compounds3 questions Basics of Organic Chemistry2 questions Electrochemistry1 questions Aldehydes Ketones and Carboxylic Acids1 questions Alcohols Phenols and Ethers1 questions Periodic Table and Periodicity1 questions Redox Reactions1 questions Ionic Equilibrium1 questions Haloalkanes and Haloarenes1 questions Chemical Equilibrium1 questions Biomolecules1 questions Structure of Atom1 questions Chemical Bonding and Molecular Structure1 questions Hydrocarbons1 questions Practical Organic Chemistry1 questions

Q1.The internal energy change (in J) When 90 g of water undergoes complete evaporation at 100oC is . (Given : $Δ$ Hvap for water at 373 K = 41 kJ/mol, R = 8.314 JK–1 mol–1)
Chemistry · Thermodynamics · Numerical
Q2.The oxidation states of iron atoms in compounds (A), (B) and (C), respectively, are x, y and z. The sum of x, y and z is . $N a_{4} [F e (C N)_{5} (N O S)]$ (A) $N a_{4} [F e O_{4}]$ (B) $[F e_{2} (C O)_{9}]$ (C)
Chemistry · Coordination Compounds · Numerical
Q3.The number of chiral carbons present in the molecule given below is . Includes diagram
Chemistry · Basics of Organic Chemistry · Numerical
Q4.The Gibbs change (in J) for the given reaction at [ $C u^{2 +}$ ] = [ $S n^{2 +}$ ] = 1 M and 298K is : $C u$ (s) + $S n^{2 +}$ (aq.) $\to$ $C u^{2 +}$ (aq.) + $S n$ (s); ( $E_{S n^{2 +} ∣ S n}^{0} = - 0.16 V$ , $E_{C u^{2 +} ∣ C u}^{0} = 0.34 V$ ) Take F = 96500…
Chemistry · Electrochemistry · Numerical
Q5.The increasing order of the following compounds towards HCN addition is : Includes diagram
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q6.The major aromatic product C in the following reaction sequence will be : Includes diagram
Chemistry · Alcohols Phenols and Ethers · MCQ
Q7.In general the property (magnitudes only) that show an opposite trend in comparison to other properties across a period is
Chemistry · Periodic Table and Periodicity · MCQ
Q8.While titrating dilute HCl solution with aqueous NaOH, which of the following will not be required?
Chemistry · Redox Reactions · MCQ
Q9.The IUPAC name for the following compound is Includes diagram
Chemistry · Basics of Organic Chemistry · MCQ
Q10.For the following Assertion and Reason, the correct option is Assertion (A): When $C u$ (II) and sulphide ions are mixed, they react together extremely quickly to give a solid. Reason (R): The equilibrium constant of $C u^{2 +}$ (aq) +…
Chemistry · Ionic Equilibrium · MCQ
Q11.Which of the following compunds will show retention in configuration on nucleophilic substitution by OH– ion?
Chemistry · Haloalkanes and Haloarenes · MCQ
Q12.Consider that a d6 metal ion ( $M^{2 +}$ ) forms a complex with aqua ligands, and the spin only magnetic moment of the complex is 4.90 BM. The geometry and the crystal field stabilization energy of the complex is
Chemistry · Coordination Compounds · MCQ
Q13.For octahedral Mn(II) and tetrahedral Ni(II) complexes, consider the following statements: (I) both the complexes can be high spin. (II) Ni(II) complex can very rarely be low spin. (III) with strong field ligands, Mn(II) complexes can be…
Chemistry · Coordination Compounds · MCQ
Q14.An open beaker of water in equilibrium with water vapour is in a sealed container. When a few grams of glucose are added to the beaker of water, the rate at which water molecules :
Chemistry · Chemical Equilibrium · MCQ
Q15.Consider the following rections: 'x', 'y' and 'z' in these reactions are respectively. Includes diagram
Chemistry · Biomolecules · MCQ
Q16.The figure that is not a direct manifestation of the quantum nature of atoms is :
Chemistry · Structure of Atom · MCQ
Q17.If $A B_{4}$ molecule is a polar molecule, a possible geometry of $A B_{4}$ is
Chemistry · Chemical Bonding and Molecular Structure · MCQ
Q18.The major product in the following reaction is : Includes diagram
Chemistry · Hydrocarbons · MCQ
Q19.In Carius method of estimation of halogen, 0.172 g of an organic compound showed presence of 0.08 g of bromine. Which of these is the correct structure of the compound?
Chemistry · Practical Organic Chemistry · MCQ