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Chemistry · 2023 · 10 Apr · Shift 1

23 questions from this JEE Main paper

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2023 · 10 Apr · Shift 1
Chemistry

Chemistry · 2023 · 10 Apr · Shift 1

23 questions from this JEE Main paper

Chemical Bonding and Molecular Structure3 questions Some Basic Concepts of Chemistry1 questions Biomolecules1 questions Aldehydes Ketones and Carboxylic Acids1 questions D and F Block Elements2 questions Coordination Compounds2 questions Basics of Organic Chemistry1 questions Thermodynamics1 questions Compounds Containing Nitrogen1 questions Practical Organic Chemistry1 questions Alcohols Phenols and Ethers1 questions Haloalkanes and Haloarenes2 questions Chemical Equilibrium1 questions Structure of Atom1 questions Chemical Kinetics and Nuclear Chemistry1 questions P Block Elements1 questions Electrochemistry1 questions Solutions1 questions

Q1.The compound which does not exist is
Chemistry · Chemical Bonding and Molecular Structure · MCQ
Q2.The number of molecules and moles in 2.8375 litres of O $_{2}$ at STP are respectively
Chemistry · Some Basic Concepts of Chemistry · MCQ
Q3.The one that does not stabilize 2 $^{\circ}$ and 3 $^{\circ}$ structures of proteins is
Chemistry · Biomolecules · MCQ
Q4.The major product 'P' formed in the given reaction is Includes diagram
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q5.Prolonged heating is avoided during the preparation of ferrous ammonium sulphate to :
Chemistry · D and F Block Elements · MCQ
Q6.Which of the following statements are correct? (A) The M $^{3 +}$ /M $^{2 +}$ reduction potential for iron is greater than manganese. (B) The higher oxidation states of first row d-block elements get stabilized by oxide ion. (C) Aqueous…
Chemistry · D and F Block Elements · MCQ
Q7.The octahedral diamagnetic low spin complex among the following is :
Chemistry · Coordination Compounds · MCQ
Q8.Using column chromatography, mixture of two compounds 'A' and 'B' was separated. 'A' eluted first, this indicates 'B' has
Chemistry · Basics of Organic Chemistry · MCQ
Q9.Given $Δ H^{0}$ for the reaction $C (graphite) + \frac{1}{2} O_{2} (g) \to CO (g)$ is : Includes table
Chemistry · Thermodynamics · MCQ
Q10.Isomeric amines with molecular formula C $_{8}$ H $_{11}$ N give the following tests Isomer (P) $\Rightarrow$ Can be prepared by Gabriel phthalimide synthesis Isomer (Q) $\Rightarrow$ Reacts with Hinsberg's reagent to give solid insoluble in…
Chemistry · Compounds Containing Nitrogen · MCQ
Q11.Given below are two statements: Statement I : Aqueous solution of K $_{2}$ Cr $_{2}$ O $_{7}$ is preferred as a primary standard in volumetric analysis over Na $_{2}$ Cr $_{2}$ O $_{7}$ aqueous solution. Statement II : K $_{2}$ Cr $_{2}$ O $_{7}$ has a…
Chemistry · Practical Organic Chemistry · MCQ
Q12.Suitable reaction condition for preparation of Methyl phenyl ether is
Chemistry · Alcohols Phenols and Ethers · MCQ
Q13.Identify the correct order of reactivity for the following pairs towards the respective mechanism Choose the correct answer from the options given below: Includes diagram
Chemistry · Haloalkanes and Haloarenes · MCQ
Q14.The pair from the following pairs having both compounds with net non-zero dipole moment is
Chemistry · Haloalkanes and Haloarenes · MCQ
Q15.In potassium ferrocyanide, there are pairs of electrons in the $t_{2 g}$ set of orbitals.
Chemistry · Coordination Compounds · Numerical
Q16.The number of bent-shaped molecule/s from the following is N $_{3}^{-}$ , NO $_{2}^{-}$ , I $_{3}^{-}$ , O $_{3}$ , SO $_{2}$
Chemistry · Chemical Bonding and Molecular Structure · Numerical
Q17.The number of correct statement/s involving equilibria in physical processes from the following is (A) Equilibrium is possible only in a closed system at a given temperature. (B) Both the opposing processes occur…
Chemistry · Chemical Equilibrium · Numerical
Q18.The sum of lone pairs present on the central atom of the interhalogen IF $_{5}$ and IF $_{7}$ is
Chemistry · Chemical Bonding and Molecular Structure · Numerical
Q19.The number of incorrect statement/s about the black body from the following is (A) Emit or absorb energy in the form of electromagnetic radiation. (B) Frequency distribution of the emitted radiation depends on…
Chemistry · Structure of Atom · Numerical
Q20.A molecule undergoes two independent first order reactions whose respective half lives are 12 min and 3 min. If both the reactions are occurring then the time taken for the 50% consumption of the reactant is min.…
Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
Q21.In the following reactions, the total number of oxygen atoms in X and Y is . Na $_{2}$ O + H $_{2}$ O $\to$ 2X Cl $_{2}$ O $_{7}$ + H $_{2}$ O $\to$ 2Y
Chemistry · P Block Elements · Numerical
Q22. $Fe O_{4}^{2 -} + 2.2V F e^{3 +} + 0.70V F e^{2 +} - 0.45V F e^{0}$ $E_{F e O_{4}^{2 -} / F e^{2 +}}^{θ}$ is $x \times 1 0^{- 3}$ V. The value of $x$ is
Chemistry · Electrochemistry · Numerical
Q23.If the degree of dissociation of aqueous solution of weak monobasic acid is determined to be 0.3, then the observed freezing point will be % higher than the expected/theoretical freezing point. (Nearest integer)
Chemistry · Solutions · Numerical