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Chemistry · 2023 · 31 Jan · Shift 1

24 questions from this JEE Main paper

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2023 · 31 Jan · Shift 1
Chemistry

Chemistry · 2023 · 31 Jan · Shift 1

24 questions from this JEE Main paper

D and F Block Elements3 questions Basics of Organic Chemistry1 questions Aldehydes Ketones and Carboxylic Acids1 questions Periodic Table and Periodicity1 questions Haloalkanes and Haloarenes1 questions Compounds Containing Nitrogen2 questions Biomolecules1 questions Hydrocarbons1 questions Structure of Atom1 questions Electrochemistry2 questions Coordination Compounds1 questions Alcohols Phenols and Ethers1 questions Chemical Bonding and Molecular Structure1 questions Some Basic Concepts of Chemistry2 questions Thermodynamics1 questions Solutions1 questions Redox Reactions1 questions Chemical Kinetics and Nuclear Chemistry1 questions Chemical Equilibrium1 questions

Q1.When $Cu^{2 +}$ ion is treated with $KI$ , a white precipitate, $X$ appears in solution. The solution is titrated with sodium thiosulphate, the compound $Y$ is formed. $X$ and $Y$ …
Chemistry · D and F Block Elements · MCQ
Q2.Match items of column I and II Correct match is Includes table Includes diagram
Chemistry · Basics of Organic Chemistry · MCQ
Q3.Consider the following reaction The correct statement for product B is. It is Includes diagram
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q4. $N d^{2 +}$ =
Chemistry · D and F Block Elements · MCQ
Q5.The correct order of basicity of oxides of vanadium is :
Chemistry · D and F Block Elements · MCQ
Q6.The correct increasing order of the ionic radii is
Chemistry · Periodic Table and Periodicity · MCQ
Q7.The correct order of melting points of dichlorobenzenes is
Chemistry · Haloalkanes and Haloarenes · MCQ
Q8.Consider the above reaction and identify the product B. Includes diagram
Chemistry · Compounds Containing Nitrogen · MCQ
Q9.A protein ' $X$ ' with molecular weight of $70, 000 u$ , on hydrolysis gives amino acids. One of these amino acid is
Chemistry · Biomolecules · MCQ
Q10.Choose the correct set of reagents for the following conversion. trans $(Ph - CH = CH - CH_{3}) \to cis (Ph - CH = CH - CH_{3})$
Chemistry · Hydrocarbons · MCQ
Q11.Which transition in the hydrogen spectrum would have the same wavelength as the Balmer type transition from $n = 4$ to $n = 2$ of $He^{+}$ spectrum
Chemistry · Structure of Atom · MCQ
Q12.Which one of the following statements is correct for electrolysis of brine solution?
Chemistry · Electrochemistry · MCQ
Q13.Cobalt chloride when dissolved in water forms pink colored complex $\underline{X}$ which has octahedral geometry. This solution on treating with conc $HCl$ forms deep blue complex, $\underline{Y}$ which has a $\underline{Z}$ …
Chemistry · Coordination Compounds · MCQ
Q14.An organic compound 'A' with emperical formula $C_{6} H_{6} O$ gives sooty flame on burning. Its reaction with bromine solution in low polarity solvent results in high yield of B. B is
Chemistry · Alcohols Phenols and Ethers · MCQ
Q15.Match List I with List II Choose the correct answer from the options given below : Includes table
Chemistry · Chemical Bonding and Molecular Structure · MCQ
Q16.Zinc reacts with hydrochloric acid to give hydrogen and zinc chloride. The volume of hydrogen gas produced at STP from the reaction of $HCl$ of zinc with excess $HCl$ is L (Nearest integer)…
Chemistry · Some Basic Concepts of Chemistry · Numerical
Q17.The logarithm of equilibrium constant for the reaction $Pd^{2 +} + 4 Cl^{-} ⇌ PdCl_{4}^{2 -}$ is (Nearest integer) Given : $\frac{2.303 R T}{F} = 0.06 V Pd_{(aq)}^{2 +} + 2 e^{-} ⇌ Pd (s) E^{⊖} = 0.83 V PdCl_{4}^{2 -} (aq) + 2 e^{-} ⇌ Pd (s) + 4 Cl^{-} (aq) E^{⊖} = 0.65 V$ …
Chemistry · Electrochemistry · Numerical
Q18.The enthalpy change for the conversion of $\frac{1}{2} Cl_{2} (g)$ to $Cl^{-}$ (aq) is ( $-$ ) $kJ mol^{- 1}$ (Nearest integer) Given : $Δ_{dis} H_{Cl_{2 (g)}^{θ}}^{⊖} = 240 kJ mol^{- 1}, Δ_{eg} H_{C l_{(g)}}^{⊖} = - 350 kJ mol^{- 1}$ …
Chemistry · Thermodynamics · Numerical
Q19.On complete combustion, $0.792 g$ of an organic compound gave $CO_{2}$ of $CO_{2}$ . The % of carbon in the organic compound is (Nearest integer)
Chemistry · Some Basic Concepts of Chemistry · Numerical
Q20.At $2 7^{\circ} C$ , a solution containing $250.0 mL$ of solute in $400 Pa$ of solution exerts an osmotic pressure of $g mol^{- 1}$ . The molar mass of the solute is $g mol^{- 1}$ …
Chemistry · Solutions · Numerical
Q21.The oxidation state of phosphorus in hypophosphoric acid is + .
Chemistry · Redox Reactions · Numerical
Q22.How many of the transformations given below would result in aromatic amines? Includes diagram
Chemistry · Compounds Containing Nitrogen · Numerical
Q23.A $\to$ B The rate constants of the above reaction at 200 K and 300 K are 0.03 min $^{- 1}$ and 0.05 min $^{- 1}$ respectively. The activation energy for the reaction is J (Nearest integer) (Given : $ln10 = 2.3 R = 8.3 J K^{- 1} mo l^{- 1} lo g 5 = 0.70 lo g 3 = 0.48 lo g 2 = 0.30$ …
Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
Q24.For reaction : $SO_{2} (g) + \frac{1}{2} O_{2} (g) ⇌ SO_{3} (g)$ $K_{p} = 2 \times 1 0^{12}$ at $2 7^{\circ} C$ and $1 atm$ pressure.…
Chemistry · Chemical Equilibrium · Numerical