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Chemistry · 2023 · 6 Apr · Shift 2

23 questions from this JEE Main paper

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2023 · 6 Apr · Shift 2
Chemistry

Chemistry · 2023 · 6 Apr · Shift 2

23 questions from this JEE Main paper

Salt Analysis1 questions D and F Block Elements3 questions Chemical Kinetics and Nuclear Chemistry1 questions Hydrocarbons2 questions Structure of Atom1 questions Periodic Table and Periodicity2 questions Coordination Compounds1 questions Alcohols Phenols and Ethers2 questions Biomolecules1 questions Basics of Organic Chemistry1 questions Some Basic Concepts of Chemistry1 questions Chemical Bonding and Molecular Structure2 questions Electrochemistry1 questions Thermodynamics1 questions Compounds Containing Nitrogen1 questions Chemical Equilibrium1 questions Solutions1 questions

Q1.Formation of which complex, among the following, is not a confirmatory test of $Pb^{2 +}$ ions :
Chemistry · Salt Analysis · MCQ
Q2.Element not present in Nessler's reagent is :
Chemistry · D and F Block Elements · MCQ
Q3.Consider the following reaction that goes from A to B in three steps as shown below: Choose the correct option Includes diagram
Chemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
Q4.Find out the major product from the following reaction. Includes diagram
Chemistry · Hydrocarbons · MCQ
Q5.If the radius of the first orbit of hydrogen atom is $α_{0}$ , then de Broglie's wavelength of electron in $3^{rd}$ orbit is :
Chemistry · Structure of Atom · MCQ
Q6.Which one of the following elements will remain as liquid inside pure boiling water?
Chemistry · Periodic Table and Periodicity · MCQ
Q7.Given below are two statements: one is labelled as "Assertion A" and the other is labelled as "Reason R" Assertion A : In the complex $Ni (CO)_{4}$ and $Fe (CO)_{5}$ , the metals have zero oxidation state.…
Chemistry · D and F Block Elements · MCQ
Q8.Group-13 elements react with $O_{2}$ in amorphous form to form oxides of type $M_{2} O_{3} (M =$ element). Which among the following is the most basic oxide?
Chemistry · Periodic Table and Periodicity · MCQ
Q9.During the reaction of permanganate with thiosulphate, the change in oxidation of manganese occurs by value of 3. Identify which of the below medium will favour the reaction.
Chemistry · D and F Block Elements · MCQ
Q10.In the following reaction, 'B' is Includes diagram
Chemistry · Hydrocarbons · MCQ
Q11.The IUPAC name of $K_{3} [Co (C_{2} O_{4})_{3}]$ is:-
Chemistry · Coordination Compounds · MCQ
Q12.The strongest acid from the following is
Chemistry · Alcohols Phenols and Ethers · MCQ
Q13.Match List I with List II Choose the correct answer from the options given below: Includes table
Chemistry · Biomolecules · MCQ
Q14.From the figure of column chromatography given below, identify incorrect statements. A. Compound 'c' is more polar than 'a' and 'b' B. Compound ' $a$ ' is least polar C. Compound 'b' comes out of the column before 'c' and after 'a'… Includes diagram
Chemistry · Basics of Organic Chemistry · MCQ
Q15.The volume of $0.02 M$ aqueous $HBr$ required to neutralize $10.0 mL$ of $0.01 M$ aqueous $Ba (OH)_{2}$ is (Assume complete neutralization)
Chemistry · Some Basic Concepts of Chemistry · MCQ
Q16.The number of species having a square planar shape from the following is . $XeF_{4}, SF_{4}, SiF_{4}, BF_{4}^{-}, BrF_{4}^{-}, [Cu (NH_{3})_{4}]^{2 +}, [FeCl_{4}]^{2 -}, [PtCl_{4}]^{2 -}$ …
Chemistry · Chemical Bonding and Molecular Structure · Numerical
Q17.The standard reduction potentials at $298 K$ for the following half cells are given below: $NO_{3}^{-} + 4 H^{+} + 3 e^{-} \to NO (g) + 2 H_{2} O E^{θ} = 0.97 V V^{2 +} (aq) + 2 e^{-} \to V E^{θ} = - 1.19 V Fe^{3 +} (aq) + 3 e^{-} \to Fe E^{θ} = - 0.04 V Ag^{+} (aq) + e^{-} \to Ag (s) E^{θ} = 0.80 V Au^{3 +} (aq) + 3 e^{-} \to Au (s) E^{θ} = 1.40 V$ …
Chemistry · Electrochemistry · Numerical
Q18.Consider the following data Heat of combustion of $H_{2} (g) = - 241.8 kJ mol^{- 1}$ Heat of combustion of $C (s) = - 393.5 kJ mol^{- 1}$ Heat of…
Chemistry · Thermodynamics · Numerical
Q19.Number of isomeric aromatic amines with molecular formula $C_{8} H_{11} N$ , which can be synthesized by Gabriel Phthalimide synthesis is .
Chemistry · Compounds Containing Nitrogen · Numerical
Q20.The equilibrium composition for the reaction $PCl_{3} + Cl_{2} ⇌ PCl_{5}$ at $298 K$ is given below: $[PCl_{3}]_{eq} = 0.2 mol L^{- 1}, [Cl_{2}]_{eq} = 0.1 mol L^{- 1}, [PCl_{5}]_{eq} = 0.40 mol L^{- 1}$ …
Chemistry · Chemical Equilibrium · Numerical
Q21.In an ice crystal, each water molecule is hydrogen bonded to neighbouring molecules.
Chemistry · Chemical Bonding and Molecular Structure · Numerical
Q22.Among the following, the number of compounds which will give positive iodoform reaction is (a) 1-Phenylbutan-2-one (b) 2-Methylbutan-2-ol (c) 3-Methylbutan-2-ol (d) 1-Phenylethanol (e) 3,3-dimethylbutan-2-one (f)…
Chemistry · Alcohols Phenols and Ethers · Numerical
Q23.Consider the following pairs of solution which will be isotonic at the same temperature. The number of pairs of solutions is / are . A. $1 M$ aq. $NaCl$ and $2 M$ aq. urea B. $1 M$ …
Chemistry · Solutions · Numerical