2022
55 questions · IIT JAMGuest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
2022
55 questions · IIT JAM
Organic Reaction Mechanism and Synthetic ApplicationsChemistry · 9 questionsMain Group ElementsChemistry · 3 questionsChemical Bonding and Shapes of MoleculesChemistry · 6 questionsBioinorganic ChemistryChemistry · 2 questionsChemical KineticsChemistry · 1 questionsAdsorptionChemistry · 1 questionsQualitative Organic AnalysisChemistry · 3 questionsSolid StateChemistry · 4 questionsTransition MetalsChemistry · 5 questionsSpectroscopyChemistry · 2 questionsAtomic and Molecular StructureChemistry · 3 questionsLiquid StateChemistry · 1 questionsGaseous StateChemistry · 1 questionsChemical and Phase EquilibriaChemistry · 3 questionsBasic Concepts and StereochemistryChemistry · 3 questionsChemical ThermodynamicsChemistry · 2 questionsAromatic and Heterocyclic ChemistryChemistry · 1 questionsAnalytical ChemistryChemistry · 2 questionsElectrochemistryChemistry · 2 questionsExtractions of MetalsChemistry · 1 questions
- Q1.The reagent required for the following transformation isChemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
- Q4.The major product formed in the following reaction isChemistry · Main Group Elements · MCQ
- Q5.Which one of the following options is best suited for effecting the transformation? HO CHO HO CO_{2}HChemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
- Q6.The structure of [XeF_{8}]^{2-} isChemistry · Chemical Bonding and Shapes of Molecules · MCQ
- Q7.Among the following, the compound that forms the strongest hydrogen bond isChemistry · Chemical Bonding and Shapes of Molecules · MCQ
- Q8.Among the following, the biomolecule with a direct metal-carbon bond isChemistry · Bioinorganic Chemistry · MCQ
- Q9.For the reaction the rate expression is . If the concentration of is doubled, the…Chemistry · Chemical Kinetics · MCQ
- Q10.The nature of interaction involved at the gas-solid interface in physisorption isChemistry · Adsorption · MCQ
- Q11.The major product formed in the following reaction is Includes diagramChemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
- Q12.An organic compound having molecular formula exhibits the following spectral characteristics: NMR: δ 9.72 (t, 1H), 7.1 (d, 2H), 6.7 (d, 2H), 3.8 (s, 3H), 3.6 (d, 2H) IR: ~1720 cm The most probable structure of…Chemistry · Qualitative Organic Analysis · MCQ
- Q13.The major product formed in the reaction of (2S,3R)-2-chloro-3-phenylbutane with NaOEt in EtOH isChemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
- Q15.The reactivity of the enol derivatives towards benzaldehyde follows the orderChemistry · Organic Reaction Mechanism and Synthetic Applications · MCQ
- Q16.All possible lattice types are observed in theChemistry · Solid State · MCQ
- Q17.The structure types of B_{10}H_{10}^{2-} and B_{10}H_{14}, respectively, areChemistry · Main Group Elements · MCQ
- Q18.The ground state and the maximum number of spin-allowed electronic transitions possible in a Co^{2+} tetrahedral complex, respectively, areChemistry · Transition Metals · MCQ
- Q19.The correct statement about the geometries of BH_{2}^{+} and NH_{2}^{+} based on valence shell electron pair repulsion (VSEPR) theory isChemistry · Chemical Bonding and Shapes of Molecules · MCQ
- Q20.The order of increasing CO stretching frequencies in [Co(CO)_{4}]^{-}, [Cu(CO)_{4}]^{+}, [Fe(CO)_{4}]^{2-} and [Ni(CO)_{4}] isChemistry · Transition Metals · MCQ
- Q21.The reaction of 2,4-dinitrofluorobenzene with hydrazine produces a yellow orange solid **X** used for the identification of an organic functional group **G**. **X** and **G**, respectively, areChemistry · Qualitative Organic Analysis · MCQ
- Q22.The stability of adducts H_{3}B·PF_{3}, H_{3}B·NMe_{3}, H_{3}B·CO, H_{3}B·OMe_{2} follows the orderChemistry · Chemical Bonding and Shapes of Molecules · MCQ
- Q23.The spacing between successive rotational energy levels of a diatomic molecule XY and its heavier isotopic analogue X'Y' varies with the rotational quantum number, J, asChemistry · Spectroscopy · MCQ
- Q24.The ratio of the 2p → 1s transition energy in He to that in the H atom is closest toChemistry · Atomic and Molecular Structure · MCQ
- Q26.Capillary W contains water and capillary M contains mercury. The contact angles between the capillary wall and the edge of the meniscus at the air-liquid interface in W and M are and , respectively. The contact angles…Chemistry · Liquid State · MCQ
- Q27.The Maxwell-Boltzmann distribution of one-dimensional velocities at temperature is [Given: is a normalization constant such that and is the Boltzmann constant]Chemistry · Gaseous State · MCQ
- Q28.The potential for a particle in a one-dimensional box is given as: for , and elsewhere. The locations of the internal nodes of the eigenfunctions , , are [Given: is an…Chemistry · Atomic and Molecular Structure · MCQ
- Q29.The number of CO stretching bands in the infrared spectrum of Fe(CO)_{5} isChemistry · Transition Metals · MCQ
- Q30.The standard Gibbs free energy change for the reaction H_{2}O (g) → H_{2} (g) + ½ O_{2} (g) at 2500 K is +118 kJ mol^{-1}. The equilibrium constant for the reaction is [Given: R = 8.314 J K^{-1} mol^{-1}]Chemistry · Chemical and Phase Equilibria · MCQ
- Q31.Among the following, the reaction(s) that favor(s) the formation of the products at 25 °C is/areChemistry · Organic Reaction Mechanism and Synthetic Applications · Multiple correct
- Q32.Among the following, the correct statement(s) is/are:Chemistry · Basic Concepts and Stereochemistry · Multiple correct
- Q33.The compound(s) that participate(s) in Diels-Alder reaction with maleic anhydride is/areChemistry · Organic Reaction Mechanism and Synthetic Applications · Multiple correct
- Q34.Among the following, the suitable route(s) for the conversion of benzaldehyde to acetophenone is/areChemistry · Organic Reaction Mechanism and Synthetic Applications · Multiple correct
- Q35.The reaction involve(s)Chemistry · Transition Metals · Multiple correct
- Q36.The reason(s) for the lower stability of Si_{2}H_{6} compared to C_{2}H_{6} is/areChemistry · Main Group Elements · Multiple correct
- Q37.For an N-atom nonlinear polyatomic gas, the constant volume molar heat capacity C_{v,m} has the expected value of 3(N - 1)R, based on the principle of equipartition of energy. The correct statement(s) about the measured value of C_{v,m}…Chemistry · Chemical Thermodynamics · Multiple correct
- Q38.Zinc containing enzyme(s) is/areChemistry · Bioinorganic Chemistry · Multiple correct
- Q39.The conversion of ICl to ICl^{+} involve(s)Chemistry · Chemical Bonding and Shapes of Molecules · Multiple correct
- Q40.The common point defect(s) in a solid is/areChemistry · Solid State · Multiple correct
- Q41.Among the following the number of aromatic compounds is . Includes diagramChemistry · Aromatic and Heterocyclic Chemistry · Numerical
- Q42.The number of stereoisomers possible for the major product formed in the reaction is . Includes diagramChemistry · Basic Concepts and Stereochemistry · Numerical
- Q43.The number of signals observed in the ^{1}H NMR spectrum of the compound is .Chemistry · Qualitative Organic Analysis · Numerical
- Q44.The reaction of 122 g of benzaldehyde with 108 g of phenylhydrazine gave 157 g of the product. The yield of the product is %. (round off to the nearest integer)Chemistry · Organic Reaction Mechanism and Synthetic Applications · Numerical
- Q45.The B–B bond order in B_{2} is .Chemistry · Chemical Bonding and Shapes of Molecules · Numerical
- Q46.The number of unpaired electrons in [Co(H_{2}O)_{6}]^{2+} is .Chemistry · Transition Metals · Numerical
- Q47.The number of significant figures in 5.0820 × 10^{2} is .Chemistry · Analytical Chemistry · Numerical
- Q48.The *d* spacing for the first-order X-ray (λ = 1.54 Å) diffraction event of metallic iron (*fcc*) at 2θ = 20.2° is Å. (*round off to three decimal places*)Chemistry · Solid State · Numerical
- Q49.The volume fraction for an element in an *fcc* lattice is . (*round off to two decimal places*)Chemistry · Solid State · Numerical
- Q50.A steady current of 1.25 A is passed through an electrochemical cell for 1.5 h using a 12 V battery. The total charge, *Q*, drawn during this process is Coulombs. (*round off to the nearest integer*)Chemistry · Electrochemistry · Numerical
- Q51.The specific rotation of optically pure (R)-1-phenylethylamine is +40 (neat, 20 °C). A synthetic sample of the same compound is shown to contain 4:1 mixture of (S)- and (R)-enantiomers. The specific rotation of the neat sample at 20 °C is …Chemistry · Basic Concepts and Stereochemistry · Numerical
- Q52.The number of β particles emitted in the nuclear reaction is .Chemistry · Analytical Chemistry · Numerical
- Q53.Iron is extracted from its ore via the reaction . The volume of CO (at STP) required to produce 1 kg of iron is liters. *(round…Chemistry · Extractions of Metals · Numerical
- Q54.Total degeneracy (number of microstates) for a Ti^{3+} ion in spherical symmetry is .Chemistry · Atomic and Molecular Structure · Numerical
- Q55.A galvanic electrochemical cell made of Zn^{2+}/Zn and Cu^{2+}/Cu half-cells produces 1.10 V at 25 °C. The ratio of [Zn^{2+}] to [Cu^{2+}] is maintained at 1.0. The ΔG° for the reaction when 1.0 mol of Zn gets dissolved is …Chemistry · Electrochemistry · Numerical
- Q56.At constant volume, 1.0 kJ of heat is transferred to 2 moles of an ideal gas at 1 atm and 298 K. The final temperature of the ideal gas is K. *(round off to one decimal place)* [Given: R = 8.314 J K^{-1} mol^{-1}]Chemistry · Chemical Thermodynamics · Numerical
- Q57.Two close lying bands in a UV spectrum occur at 274 nm and 269 nm. The magnitude of the energy gap between the two bands is cm^{-1}. *(round off to the nearest integer)*Chemistry · Spectroscopy · Numerical
- Q58.The pH of an aqueous buffer prepared using CH_{3}COOH and CH_{3}COO^{-}Na^{+} is 4.80. The quantity is . *(round off to…Chemistry · Chemical and Phase Equilibria · Numerical
- Q59.At constant temperature, 6.40 g of a substance dissolved in 78 g of benzene decreases the vapor pressure of benzene from 0.125 atm to 0.119 atm. The molar mass of the substance is g mol^{-1}. *(round off to one…Chemistry · Chemical and Phase Equilibria · Numerical