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Chemistry · 2024 · 4 Apr · Shift 1

30 questions from this JEE Main paper

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2024 · 4 Apr · Shift 1
Chemistry

Chemistry · 2024 · 4 Apr · Shift 1

30 questions from this JEE Main paper

Coordination Compounds2 questions Basics of Organic Chemistry4 questions Aldehydes Ketones and Carboxylic Acids2 questions Haloalkanes and Haloarenes2 questions Salt Analysis1 questions D and F Block Elements2 questions Biomolecules1 questions Chemical Bonding and Molecular Structure3 questions Some Basic Concepts of Chemistry2 questions Electrochemistry2 questions Periodic Table and Periodicity2 questions Compounds Containing Nitrogen2 questions Solutions1 questions Redox Reactions1 questions Chemical Kinetics and Nuclear Chemistry1 questions Thermodynamics1 questions Structure of Atom1 questions

Q1.Number of complexes from the following with even number of unpaired " $d$ " electrons is $[V (H_{2} O)_{6}]^{3 +}, [Cr (H_{2} O)_{6}]^{2 +}, [Fe (H_{2} O)_{6}]^{3 +}, [Ni (H_{2} O)_{6}]^{3 +}, [Cu (H_{2} O)_{6}]^{2 +}$ …
Chemistry · Coordination Compounds · MCQ
Q2.What will be the decreasing order of basic strength of the following conjugate bases? $^{-} OH, R \overline{O}, CH_{3} CO \overline{O}, Cl$
Chemistry · Basics of Organic Chemistry · MCQ
Q3.Given below are two statements : Statements I : Acidity of $α$ -hydrogens of aldehydes and ketones is responsible for Aldol reaction. Statement II : Reaction between benzaldehyde and ethanal will NOT give Cross - Aldol product. In the…
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q4.Match List I with List II : Choose the correct answer from the options given below : Includes table Includes diagram
Chemistry · Basics of Organic Chemistry · MCQ
Q5.Identify B and C and how are A and C related? Includes diagram
Chemistry · Haloalkanes and Haloarenes · MCQ
Q6.Identify the correct set of reagents or reaction conditions ' $X$ ' and ' $Y$ ' in the following set of transformation. Includes diagram
Chemistry · Haloalkanes and Haloarenes · MCQ
Q7.In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to :
Chemistry · Salt Analysis · MCQ
Q8.The element which shows only one oxidation state other than its elemental form is :
Chemistry · D and F Block Elements · MCQ
Q9.Which of the following is the correct structure of L-Glucose?
Chemistry · Biomolecules · MCQ
Q10.Identify the product in the following reaction: Includes diagram
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q11.Number of molecules/ions from the following in which the central atom is involved in $sp^{3}$ hybridization is . $NO_{3}^{-}, BCl_{3}, ClO_{2}^{-}, ClO_{3}^{-}$
Chemistry · Chemical Bonding and Molecular Structure · MCQ
Q12.The correct sequence of ligands in the order of decreasing field strength is :
Chemistry · Coordination Compounds · MCQ
Q13.The Molarity (M) of an aqueous solution containing $5.85 g$ of $NaCl$ in $500 mL$ water is : (Given : Molar Mass $Na : 23$ and $Cl : 35.5 gmol^{- 1}$ )
Chemistry · Some Basic Concepts of Chemistry · MCQ
Q14.Which among the following is incorrect statement?
Chemistry · Basics of Organic Chemistry · MCQ
Q15.One of the commonly used electrode is calomel electrode. Under which of the following categories, calomel electrode comes?
Chemistry · Electrochemistry · MCQ
Q16.The correct order of first ionization enthalpy values of the following elements is : (A) O (B) N (C) Be (D) F (E) B Choose the correct answer from the options given below :
Chemistry · Periodic Table and Periodicity · MCQ
Q17.Which of the following nitrogen containing compound does not give Lassaigne's test ?
Chemistry · Compounds Containing Nitrogen · MCQ
Q18.Which one of the following molecules has maximum dipole moment?
Chemistry · Chemical Bonding and Molecular Structure · MCQ
Q19.What pressure (bar) of $H_{2}$ would be required to make emf of hydrogen electrode zero in pure water at $2 5^{\circ} C$ ?
Chemistry · Electrochemistry · MCQ
Q20.Number of elements from the following that CANNOT form compounds with valencies which match with their respective group valencies is . B, C, N, S, O, F, P, Al, Si
Chemistry · Periodic Table and Periodicity · MCQ
Q21. $2.5 g$ of a non-volatile, non-electrolyte is dissolved in $100 g$ of water at $2 5^{\circ} C$ . The solution showed a boiling point elevation by $2^{\circ} C$ . Assuming the solute concentration is…
Chemistry · Solutions · Numerical
Q22.Only $2 mL$ of $KMnO_{4}$ solution of unknown molarity is required to reach the end point of a titration of $20 mL$ of oxalic acid $(2 M)$ in acidic medium. The molarity of $KMnO_{4}$ solution…
Chemistry · Redox Reactions · Numerical
Q23.Consider the following transformation involving first order elementary reaction in each step at constant temperature as shown below. Some details of the above reactions are listed below. If the overall rate constant of the above… Includes table Includes diagram
Chemistry · Chemical Kinetics and Nuclear Chemistry · Numerical
Q24.The enthalpy of formation of ethane $(C_{2} H_{6})$ from ethylene by addition of hydrogen where the bond-energies of $C - H, C - C, C = C, H - H$ are $414 kJ, 347 kJ, 615 kJ$ …
Chemistry · Thermodynamics · Numerical
Q25. $Xg$ of ethylamine is subjected to reaction with $NaNO_{2} / HCl$ followed by water; evolved dinitrogen gas which occupied $2.24 L$ volume at STP. X is $\times 1 0^{- 1} g$ …
Chemistry · Some Basic Concepts of Chemistry · Numerical
Q26.The number of the correct reaction(s) among the following is . Includes diagram
Chemistry · Compounds Containing Nitrogen · Numerical
Q27.The de-Broglie's wavelength of an electron in the $4^{th}$ orbit is $π a_{0}$ . ( $a_{0} =$ Bohr's radius)
Chemistry · Structure of Atom · Numerical
Q28.The number of different chain isomers for C $_{7}$ H $_{16}$ is .
Chemistry · Basics of Organic Chemistry · Numerical
Q29.Number of molecules/species from the following having one unpaired electron is . $O_{2}, O_{2}^{- 1}, NO, CN^{- 1}, O_{2}^{2 -}$
Chemistry · Chemical Bonding and Molecular Structure · Numerical
Q30.Consider the following reaction $MnO_{2} + KOH + O_{2} \to A + H_{2} O .$ Product ' $A$ ' in neutral or acidic medium disproportionate to give products ' $B$ ' and…
Chemistry · D and F Block Elements · Numerical