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Chemistry · 2022 · 25 Jul · Shift 1

20 questions from this JEE Main paper

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2022 · 25 Jul · Shift 1
Chemistry

Chemistry · 2022 · 25 Jul · Shift 1

20 questions from this JEE Main paper

Some Basic Concepts of Chemistry1 questions Structure of Atom1 questions Solutions1 questions Ionic Equilibrium1 questions Periodic Table and Periodicity1 questions Hydrocarbons1 questions Alcohols Phenols and Ethers2 questions Aldehydes Ketones and Carboxylic Acids2 questions Compounds Containing Nitrogen2 questions Biomolecules1 questions Chemical Bonding and Molecular Structure1 questions Thermodynamics1 questions Electrochemistry1 questions Chemical Kinetics and Nuclear Chemistry1 questions Coordination Compounds1 questions D and F Block Elements1 questions Practical Organic Chemistry1 questions

Q1. $SO_{2} Cl_{2}$ on reaction with excess of water results into acidic mixture $SO_{2} Cl_{2} + 2 H_{2} O \to H_{2} SO_{4} + 2 HCl$ 16 moles of $NaOH$ …
Chemistry · Some Basic Concepts of Chemistry · MCQ
Q2.Which of the following sets of quantum numbers is not allowed?
Chemistry · Structure of Atom · MCQ
Q3.The depression in freezing point observed for a formic acid solution of concentration $0.5 mL L^{- 1}$ is $0.040 5^{\circ} C$ . Density of formic acid is $1.05 g mL^{- 1}$ . The Van't Hoff factor…
Chemistry · Solutions · MCQ
Q4. $0.1 M NH_{4} OH$ of $0.1 M NH_{4} OH$ is mixed with $0.05 M HCl$ of $pH$ . The $pH$ of the mixture is nearest to : (Given : $K_{b} (NH_{4} OH) = 1 \times 1 0^{- 5}, lo g 2 = 0.30, lo g 3 = 0.48, lo g 5 = 0.69, lo g 7 = 0.84, lo g 11 = 1.04)$ …
Chemistry · Ionic Equilibrium · MCQ
Q5.The IUPAC nomenclature of an element with electronic configuration [Rn] $5 f^{14} 6 d^{1} 7 s^{2}$ is :
Chemistry · Periodic Table and Periodicity · MCQ
Q6.A compound ‘ $A$ ’ on reaction with ‘ $X$ ’ and ‘ $Y$ ’ produces the same major product but different by product ' $a$ ' and ' $b^{'}$ . Oxidation of ' $a$ ' gives a substance produced by ants. 'X' and 'Y' respectively… Includes diagram
Chemistry · Hydrocarbons · MCQ
Q7.Most stable product of the following reaction is: Includes diagram
Chemistry · Alcohols Phenols and Ethers · MCQ
Q8.Which one of the following reactions does not represent correct combination of substrate and product under the given conditions?
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q9.An organic compound 'A' on reaction with $N H_{3}$ followed by heating gives compound B. Which on further strong heating gives compound C ( $C_{8} H_{5} N O_{2}$ ). Compound C on sequential reaction with ethanolic $K O H$ , alkyl chloride and hydrolysis…
Chemistry · Compounds Containing Nitrogen · MCQ
Q10.During the denaturation of proteins, which of these structures will remain intact?
Chemistry · Biomolecules · MCQ
Q11.Given below are two statements : Statement I : On heating with $KHSO_{4}$ , glycerol is dehydrated and acrolein is formed. Statement II : Acrolein has fruity odour and can be used to test glycerol's presence. Choose the correct…
Chemistry · Alcohols Phenols and Ethers · MCQ
Q12.Among the following species $N_{2}, N_{2}^{+}, N_{2}^{-}, N_{2}^{2 -}, O_{2}, O_{2}^{+}, O_{2}^{-}, O_{2}^{2 -}$ the number of species showing diamagnesim is …
Chemistry · Chemical Bonding and Molecular Structure · Numerical
Q13.The enthalpy of combustion of propane, graphite and dihydrogen at $- 2220.0 kJ mol^{- 1}, - 393.5 kJ mol^{- 1}$ are $- 2220.0 kJ mol^{- 1}, - 393.5 kJ mol^{- 1}$ and $- 285.8 kJ mol^{- 1}$ respectively. The…
Chemistry · Thermodynamics · Numerical
Q14.The cell potential for $Zn Zn^{2 +} (aq) Sn^{x +} Sn$ is $298 K$ at $1 0^{- 2}$ . The reaction quotient for the above reaction is $1 0^{- 2}$ . The number of…
Chemistry · Electrochemistry · Numerical
Q15.The half life for the decomposition of gaseous compound $A$ is $4.0$ when the gaseous pressure was 500 Torr initially. When the pressure was 250 Torr, the half life was found to be $4.0$ min. The order of the reaction…
Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
Q16.Consider the following metal complexes : $[Co (NH_{3})_{6}]^{3 +} [CoCl (NH_{3})_{5}]^{2 +} [Co (CN)_{6}]^{3 -} [Co (NH_{3})_{5} (H_{2} O)]^{3 +}$ …
Chemistry · Coordination Compounds · Numerical
Q17.Among $C o^{3 +}$ , $T i^{2 +}$ , $V^{2 +}$ and $C r^{2 +}$ ions, one if used as a reagent cannot liberate $H_{2}$ from dilute mineral acid solution, its spin-only magnetic moment in gaseous state is B.M. (Nearest integer)
Chemistry · D and F Block Elements · Numerical
Q18.While estimating the nitrogen present in an organic compound by Kjeldahl's method, the ammonia evolved from $2.5 mL$ of the compound neutralized $2 M H_{2} SO_{4}$ of $2 M H_{2} SO_{4}$ . The…
Chemistry · Practical Organic Chemistry · Numerical
Q19.The number of sp3 hybridised carbons in an acyclic neutral compound with molecular formula $C_{4} H_{5} N$ is .
Chemistry · Compounds Containing Nitrogen · Numerical
Q20.In the given reaction The number of chiral carbon/s in product A is . Includes diagram
Chemistry · Aldehydes Ketones and Carboxylic Acids · Numerical