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

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

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

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

The spin-only magnetic moment of [Fe(acac)₃] is____μ𝐵 .
(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 sum of the total number of stereoisomers (including enantiomers) present in the following molecules is _____.

The transition metal (M) complex that can have all isomers (geometric, linkage, and ionization) is

The volume of 2.0 mol of an ideal gas is reduced to half isothermally at 300 K in a closed system. The value of ΔG is_____ kJ.
[Given: R=8.314 J mol^-1 K^-1 ] 
(round off to two decimal places)

When a glass capillary tube is dipped in water, a 1.0 cm rise in the water level is observed at 18 °C. The internal radius of the capillary is ______ cm.
[Given: Surface tension of water at 18 °C = 73.2 dyne cm⁻¹ ; difference in the densities of water and air at 18 °C = 0.996 g cm⁻³ ; gravitational acceleration constant, g = 980 cm s⁻² .
Assume that water completely wets the glass capillary and the interface between the water and the air phase inside the capillary is a hemisphere.] (round off to two decimal places)

X and Y in the following reactions, respectively, are