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Chemistry · 2023 · 30 Jan · Shift 2

22 questions from this JEE Main paper

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2023 · 30 Jan · Shift 2
Chemistry

Chemistry · 2023 · 30 Jan · Shift 2

22 questions from this JEE Main paper

D and F Block Elements2 questions Aldehydes Ketones and Carboxylic Acids2 questions Compounds Containing Nitrogen2 questions Coordination Compounds2 questions Haloalkanes and Haloarenes1 questions Basics of Organic Chemistry1 questions Structure of Atom2 questions Periodic Table and Periodicity1 questions Alcohols Phenols and Ethers1 questions Some Basic Concepts of Chemistry2 questions Biomolecules1 questions Chemical Kinetics and Nuclear Chemistry1 questions Thermodynamics1 questions Electrochemistry1 questions Chemical Equilibrium1 questions Solutions1 questions

Q1.Formulae for Nessler's reagent is :
Chemistry · D and F Block Elements · MCQ
Q2.Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: can be easily reduced using $Zn - Hg / HCl$ to Reason $R : Zn - Hg / HCl$ … Includes diagram
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q3.The most stable carbocation for the following is: Includes diagram
Chemistry · Compounds Containing Nitrogen · MCQ
Q4.Match List I with List II: Includes table
Chemistry · Coordination Compounds · MCQ
Q5.The $Cl - Co - Cl$ bond angle values in a fac- $[Co (NH_{3})_{3} Cl_{3}]$ complex is/are :
Chemistry · Coordination Compounds · MCQ
Q6.Decreasing order towards SN 1 reaction for the following compounds is: Includes diagram
Chemistry · Haloalkanes and Haloarenes · MCQ
Q7. $KMnO_{4}$ oxidises $I^{-}$ in acidic and neutral/faintly alkaline solutions, respectively, to :
Chemistry · D and F Block Elements · MCQ
Q8.In the above conversion of compound $(X)$ to product $(Y)$ , the sequence of reagents to be used will be: Includes diagram
Chemistry · Compounds Containing Nitrogen · MCQ
Q9.Match List I with List II: Includes table
Chemistry · Basics of Organic Chemistry · MCQ
Q10.Maximum number of electrons that can be accommodated in shell with $n = 4$ are:
Chemistry · Structure of Atom · MCQ
Q11.Bond dissociation energy of " $E - H$ " bond of the " $H_{2} E$ " hydrides of group 16 elements (given below), follows order. A. $O$ B. $S$ C. $S e$ D. $Te$ Choose the correct from the options given…
Chemistry · Periodic Table and Periodicity · MCQ
Q12.The correct order of $pK_{a}$ values for the following compounds is: Includes diagram
Chemistry · Alcohols Phenols and Ethers · MCQ
Q13. $1 L, 0.02 M$ solution of $[Co (NH_{3})_{5} SO_{4}]$ Br is mixed with $1 L, 0.02 M$ solution of $[Co (NH_{3})_{5} Br] SO_{4}$ …
Chemistry · Some Basic Concepts of Chemistry · MCQ
Q14.The wave function $(Ψ)$ of $2 s$ is given by $Ψ_{2 s} = \frac{1}{2 2 π} (\frac{1}{a _{0}})^{1/2} (2 - \frac{r}{a _{0}}) e^{- r /2 a_{0}}$ At $r = r_{0}$ , radial node is formed. Thus, $r_{0}$ in…
Chemistry · Structure of Atom · MCQ
Q15.The strength of 50 volume solution of hydrogen peroxide is $g / L$ (Nearest integer). Given: Molar mass of $H_{2} O_{2}$ is $34 g mol^{- 1}$ Molar volume of gas…
Chemistry · Some Basic Concepts of Chemistry · Numerical
Q16.A short peptide on complete hydrolysis produces 3 moles of glycine (G), two moles of leucine (L) and two moles of valine (V) per mole of peptide. The number of peptide linkages in it are .
Chemistry · Biomolecules · Numerical
Q17.Number of compounds from the following which will not dissolve in cold $NaHCO_{3}$ and $NaOH$ solutions but will dissolve in hot $NaOH$ solution is . Includes diagram
Chemistry · Aldehydes Ketones and Carboxylic Acids · Numerical
Q18.An organic compound undergoes first-order decomposition. If the time taken for the $60%$ decomposition is $540 s$ , then the time required for $90%$ decomposition will be s. (Nearest integer). Given:…
Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
Q19.1 mole of ideal gas is allowed to expand reversibly and adiabatically from a temperature of $2 7^{\circ} C$ . The work done is $3 kJ mol^{- 1}$ . The final temperature of the gas is $K$ …
Chemistry · Thermodynamics · Numerical
Q20.The electrode potential of the following half cell at $298 K X X^{2 +} (0.001 M) ∥ Y^{2 +} (0.01 M) Y$ is $\times 10^{-2}…
Chemistry · Electrochemistry · Numerical
Q21.Consider the following equation: $2 SO_{2} (g) + O_{2} (g) ⇌ 2 SO_{3} (g), Δ H = - 190 kJ$ The number of factors which will increase the yield of $SO_{3}$ at equilibrium from the…
Chemistry · Chemical Equilibrium · Numerical
Q22.Lead storage battery contains $38%$ by weight solution of $H_{2} SO_{4}$ . The van't Hoff factor is $2.67$ at this concentration. The temperature in Kelvin at which the solution in the battery will freeze is …
Chemistry · Solutions · Numerical