List of top Questions asked in Indian Institute Of Technology Joint Admission Test for MSc- 2023

For the given elementary reactions, the steady-state concentration of X is

The correct statement(s) is/are

The number of singlets observed in the 1H NMR spectrum of P is ____.

The number of valence electrons in Na₂[Fe(CO)₄] (the Colman’s reagent) is _____.

The diatomic molecule(s) that has/have bond order of one is/are

The products X and Y in the following reaction sequence, respectively, are

The molecular weight of the major product of the reaction is (in integer).

[Given: atomic weight of H=1, C=12, N=14, and Br=80]

The correct statement(s) about the complexes I (K3[CoF₆]) and II (K₃[RhF₆]) is/are

The reaction(s) that yield(s) Ph-CH₂-CH₂-CO₂ Me as the major product is/are

Consider the following reaction:
2 C₆H₆+15 O₂→12 CO₂+6 H₂O \(Δ_r𝐻^0_{298}\) =−3120 kJ mol⁻¹.
A closed system initially contains 5 moles of benzene and 25 moles of oxygen under standard conditions at 298 K. The reaction was stopped when 17.5 moles of oxygen is left. The amount of heat evolved during the reaction is____kJ. 
(round off to the nearest integer)

In a gravimetric estimation of Al, a sample of 0.1000 g AlCl₃ is precipitated with 8-hydroxyquinoline. The weight of the precipitate is _____ g.
[Given: atomic weight of Al is 26.98; molecular weight of AlCl₃ is 133.34; and molecular weight of 8-hydroxyquinoline is 145.16] 
(round off to 4 decimal places)

The following diagram shows the kinetic energy of the ejected photoelectrons against the energy of incident radiation for two metal surfaces M₁ and M₂. If the energy of the incident radiation on M₁ is equal to the work function of M₂, the de Broglie wavelength of the ejected photoelectron is nm

[Given: Mass of electron = 9.11x10⁻³¹ kg; Planck’s constant = 6.62x10⁻³⁴ J s; 1 eV=1.6x10⁻¹⁹ J.]
(round off to two decimal places)

The separation (in nm) of {134} planes of an orthorhombic unit cell (with cell parameters 𝑎=0.5 nm, 𝑏=0.6 nm, and 𝑐=0.8 nm) is

Free heme in aqueous solution when exposed to dioxygen is finally converted to (circle around iron in the given choices represents the protoporphyrin IX)

The reaction(s) that yield(s) 1-naphthol as the major product is/are

The role(s) of fluorspar in the electrolytic reduction of Al₂O₃ is/are to

The spin-only magnetic moment of B₂ molecule is_____ μ_𝐵 .
(round off to two decimal places)

The harmonic vibrational frequency of a diatomic molecule is 2000 cm⁻¹ . Its zero point energy is eV.
[Given: Planck’s constant = 6.62x10⁻³⁴ J s; 1 eV = 1.6x10⁻¹⁹ J] 
(round off to two decimal places)

The standard reduction potential (E⁰ ) of Fe³⁺→Fe is____V.
[Given: Fe³⁺→Fe2+ E ⁰ = 0.77 V and 
Fe²⁺→Fe E ⁰=−0.44 V] 
(round off to three decimal places)

The geometry of [VO(acac)₂] is

The spin-only magnetic moment of [Fe(acac)₃] is____μ𝐵 .
(round off to two decimal places)

The highest possible energy of a photon in the emission spectrum of hydrogen atom is ______ eV.
[Given: Rydberg constant = 13.61 eV] 
(round off to two decimal places)

Correct statement(s) about Q and R is/are

The amount of ethane produced in the following reaction is kg.

(round off to two decimal places)

The isoelectric point of glutamic acid is ______.

(round off to two decimal places)