Chemistry · 2019
60 questions from this IIT JAM paperGuest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
Chemistry · 2019
60 questions from this IIT JAM paper
Chemical Kinetics4 questionsChemical Thermodynamics2 questionsSpectroscopy4 questionsVectors and Matrices1 questionsChemical Bonding and Shapes of Molecules4 questionsBioinorganic Chemistry2 questionsTransition Metals5 questionsOrganic Reaction Mechanism and Synthetic Applications8 questionsNatural Products Chemistry4 questionsMaxima and Minima1 questionsAtomic and Molecular Structure2 questionsGaseous State2 questionsSolid State2 questionsAnalytical Chemistry2 questionsMain Group Elements3 questionsPeriodic Table2 questionsQualitative Organic Analysis2 questionsBasic Concepts and Stereochemistry4 questionsDeterminants1 questionsAromatic and Heterocyclic Chemistry1 questionsChemical and Phase Equilibria2 questionsElectrochemistry1 questionsAdsorption1 questions
- Q1.For a reaction of the type A + B → Products, the unit of the rate constant is mol L⁻¹ s⁻¹. The overall order of the reaction isChemistry · Chemical Kinetics · MCQ
- Q2.The thermodynamic criterion for spontaneity of a process in a system under constant volume and temperature and in the absence of any work other than expansion work (if any) isChemistry · Chemical Thermodynamics · MCQ
- Q3.The number of vibrational mode(s) of a carbon dioxide molecule that can be detected using infrared spectroscopy isChemistry · Spectroscopy · MCQ
- Q4.For three non-coplanar vectors **a**, **b** and **c**, the expression **a** · (**b** × **c**) can be written asChemistry · Vectors and Matrices · MCQ
- Q5.Correct trend in the bond order isChemistry · Chemical Bonding and Shapes of Molecules · MCQ
- Q6.The correct option for the metal ion present in the active site of myoglobin, hemocyanin and vitamin B₁₂, respectively, isChemistry · Bioinorganic Chemistry · MCQ
- Q7.The correct order of wavelength (λmax) of the halide to metal charge-transfer band of [Co(NH3)5Cl]2+ (I), [Co(NH3)5Br]2+ (II) and [Co(NH3)5I]2+ (III), isChemistry · Transition Metals · MCQ
- Q8.The correct option for the major products of the following reaction is (* represents isotopically labelled carbon atom) Includes diagramChemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
- Q9.The major product formed in the following reaction is Includes diagramChemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
- Q10.The complementary strand for the following single strand of DNA is 5' ← A — T — G — C — T → 3'Chemistry · Natural Products Chemistry · MCQ
- Q11.The function has a minimum atChemistry · Maxima and Minima · MCQ
- Q12.The correct option for the number of bending modes of vibration in each of , and molecules, respectively, isChemistry · Spectroscopy · MCQ
- Q13.The total number of degrees of freedom of an HBr molecule that is constrained to translate along a straight line but does not have any constraints for its rotation and vibration isChemistry · Atomic and Molecular Structure · MCQ
- Q14.According to the kinetic theory of gases, the ratio of the root mean square velocity of molecular oxygen and molecular hydrogen at 300 K isChemistry · Gaseous State · MCQ
- Q15.The half-life of the chemical reaction, A → Product, for initial reactant concentrations of 0.1 and 0.4 mol L are 200 and 50 s, respectively. The order of the reaction isChemistry · Chemical Kinetics · MCQ
- Q16.The ratio of the nearest neighbor atomic distances in body-centered cubic (bcc) and face-centered cubic (fcc) crystals with the same unit cell edge length isChemistry · Solid State · MCQ
- Q17.The correct trend in the rate of substitution of Cl by pyridine in the following complexes is (I) (II) (III) (IV) Includes diagramChemistry · Transition Metals · MCQ
- Q18.In qualitative inorganic analysis of metal ions, the ion which precipitates as sulfide in the presence of H S in warm dilute HCl isChemistry · Analytical Chemistry · MCQ
- Q19.The correct statement regarding the observed magnetic properties of NO, O₂, B₂, and C₂ in their ground state isChemistry · Chemical Bonding and Shapes of Molecules · MCQ
- Q20.The observed magnetic moments of octahedral Mn³⁺, Fe³⁺ and Co³⁺ complexes are 4.95, 6.06 and 0.00 BM, respectively. The correct option for the electronic configuration of Mn³⁺, Fe³⁺ and Co³⁺ metal ions in these complexes, respectively, isChemistry · Transition Metals · MCQ
- Q21.Among the following compounds, the one having the lowest boiling point isChemistry · Main Group Elements · MCQ
- Q22.The correct option having one complex from each of the following pairs which is more reactive towards the oxidative addition reaction by hydrogen molecule is Pair 1: IrCl(PMe₃)₃ (I) and IrCl(CO)(PMe₃)₂ (II) Pair 2: IrCl(CO)(PPh₃)₂ (III)…Chemistry · Transition Metals · MCQ
- Q23.Among the following, the correct statement isChemistry · Periodic Table · MCQ
- Q24.The major product of the following reaction is Includes diagramChemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
- Q25.In ¹H NMR spectrum of the given molecule, the correct order of chemical shifts of the labelled protons (Hˣ, Hʸ, Hᶻ) is Includes diagramChemistry · Qualitative Organic Analysis · MCQ
- Q26.In the following reaction of (D)-Glucose, a product P is formed. (D)-Glucose P Among the following compounds, the one which will give the same product (P) under identical reaction…Chemistry · Natural Products Chemistry · MCQ
- Q27.The major product of the following reaction is Includes diagramChemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
- Q28.The correct option for the product(s) of the following reaction is Includes diagramChemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
- Q29.The increasing order of acidity of the given molecules in aqueous media is Includes diagramChemistry · Basic Concepts and Stereochemistry · MCQ
- Q30.The compound formed upon subjecting an aliphatic amine to Lassaigne's test isChemistry · Qualitative Organic Analysis · MCQ
- Q31.The eigenvalue(s) of the matrix is/areChemistry · Determinants · Multiple correct
- Q32.The unit of the constant ‘a’ in van der Waals equation of state of a real gas can be expressed asChemistry · Gaseous State · Multiple correct
- Q33.Among the following, microwave active molecule(s) is/areChemistry · Spectroscopy · Multiple correct
- Q34.The true statement(s) regarding the brown ring test carried out in the laboratory for the detection of NO₃⁻ is/areChemistry · Analytical Chemistry · Multiple correct
- Q35.The true statement(s) regarding the carbonic anhydrase enzyme is/areChemistry · Bioinorganic Chemistry · Multiple correct
- Q36.The correct statement(s) about NO₂, NO₂⁺ and CO₂ is /areChemistry · Chemical Bonding and Shapes of Molecules · Multiple correct
- Q37.The compound(s) formed as intermediate(s) in the following reaction sequence is/are Includes diagramChemistry · Organic Reaction Mechanism and Synthetic Applications · Multiple correct
- Q38.The correct statement(s) among the following is/areChemistry · Natural Products Chemistry · Multiple correct
- Q39.The diastereomeric pair(s) among the following option(s) is/areChemistry · Basic Concepts and Stereochemistry · Multiple correct
- Q40.The reaction(s) that result(s) in the formation of aromatic species is/areChemistry · Aromatic and Heterocyclic Chemistry · Multiple correct
- Q41.The bond order of N₂⁺ ion is . (Round off to one decimal place)Chemistry · Chemical Bonding and Shapes of Molecules · Numerical
- Q42.One liter of a buffer solution contains 0.004 mole of acetic acid (pKₐ = 4.76) and 0.4 mole of sodium acetate. The pH of the solution is . (Round off to two decimal places)Chemistry · Chemical and Phase Equilibria · Numerical
- Q43.The limiting molar conductivity of La³⁺ and Cl⁻ ions in aqueous medium at 298 K are 209.10 × 10⁻⁴ and 76.35 × 10⁻⁴ S m² mol⁻¹, respectively. The transport number of Cl⁻ in an infinitely dilute aqueous solution of LaCl₃ at 298 K is …Chemistry · Electrochemistry · Numerical
- Q44.The magnetic field strength required to excite an isolated proton to its higher spin state with an electromagnetic radiation of 300 MHz is Tesla (T). (Round off to two decimal places) [Magnetogyric ratio of…Chemistry · Spectroscopy · Numerical
- Q45.The value of n for the complex [Fe(CO)₄(SiMe₃)]ⁿ satisfying the 18-electron rule is .Chemistry · Transition Metals · Numerical
- Q46.In the structure of P₄O₁₀, the number of P-O-P bond(s) is .Chemistry · Main Group Elements · Numerical
- Q47.Number of vertices in an icosahedral closo-borane is .Chemistry · Main Group Elements · Numerical
- Q48.Based on the information given below, the isoelectric point (pI) of lysine is . (Round off to one decimal place) Includes diagramChemistry · Natural Products Chemistry · Numerical
- Q49.(R)-2-methyl-1-butanol has a specific rotation of +13.5°. The specific rotation of 2-methyl-1-butanol containing 40% of the (S)-enantiomer is °. (Round off to one decimal place)Chemistry · Basic Concepts and Stereochemistry · Numerical
- Q50.The number of gauche-butane interaction(s) in the following compound is . Includes diagramChemistry · Basic Concepts and Stereochemistry · Numerical
- Q51.The ionization energy of hydrogen atom is 13.6 eV and the first ionization energy of sodium atom is 5.1 eV. The effective nuclear charge experienced by the valance electron of sodium atom is . (Round off to one…Chemistry · Periodic Table · Numerical
- Q52.One mole of an ideal gas is subjected to an isothermal increase in pressure from 100 kPa to 1000 kPa at 300 K. The change in Gibbs free energy of the system is kJ mol⁻¹. (Round off to one decimal place) [Given:…Chemistry · Chemical Thermodynamics · Numerical
- Q53.One liter of an aqueous urea solution contains 6 g of urea. The osmotic pressure of the solution at 300 K (assuming an ideal behavior) is kPa. (Round off to one decimal place) [Given: Molecular weight of urea is…Chemistry · Chemical and Phase Equilibria · Numerical
- Q54.A first order reflection of X-ray from {220} plane of copper crystal is observed at a glancing angle of 22°. The wavelength of the X-ray used is pm. (Round off to one decimal place) [Given: Copper forms fcc…Chemistry · Solid State · Numerical
- Q55.The collision flux of a monoatomic gas on copper surface is 3.0 × 10¹⁸ m⁻² s⁻¹. Note that copper surface forms a square lattice with lattice constant of 210 pm. If the sticking coefficient of the atom with copper is 1.0, the time taken by…Chemistry · Adsorption · Numerical
- Q56.The turnover frequency (TOF) for the catalytic reaction, A (1 mol) B with 90% yield of the product is hour . (Round off to the nearest integer)Chemistry · Chemical Kinetics · Numerical
- Q57.A radioactive sample decays to 10% of its initial amount in 4600 minutes. The rate constant of this process is hour . (Round off to two decimal places)Chemistry · Chemical Kinetics · Numerical
- Q58.Given that the radius of the first Bohr orbit of hydrogen atom is 53 pm, the radius of its third Bohr orbit is pm. (Round off to the nearest integer)Chemistry · Atomic and Molecular Structure · Numerical
- Q59.5.3 g of benzaldehyde was reacted with an excess of acetophenone to produce 5.2 g of the enone product as per the reaction shown below. The yield of the reaction is %. (Round off to the nearest integer) (MW =… Includes diagramChemistry · Organic Reaction Mechanism and Synthetic Applications · Numerical
- Q60.Assume that the reaction of MeMgBr with ethylacetate proceeds with 100% conversion to give tert-butanol. The volume of 0.2 M solution of MeMgBr required to convert 10 mL of a 0.025 M solution of ethylacetate to tert-butanol is …Chemistry · Organic Reaction Mechanism and Synthetic Applications · Numerical