List of top Questions asked in IIT JAM CY

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, are

The stability of adducts $H_3B.PF_3, H_3B.NMc_3, H_3B.CO, H_3B.OMe_2$ follows the order

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, as

The ratio of the $2p → 1s$ transition energy in $He^+$ to that in the H atom is closest to

The phase diagram of water is best represented by

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 $\theta_W$ and $\theta_M$, respectively. The contact angles satisfy the conditions

The Maxwell-Boltzmann distribution $f(v_x)$ of one-dimensional velocities $v_x$ at temperature T is [Given: A is a normalization constant such that $ \int_{-\infty}^{\infty} f(v_x) dv_x = 1$, and $k_B$ is the Boltzmann constant]

The potential for a particle in a one-dimensional box is given as:
$V(x)=0$ for $0≤x≤L,$ and $V(x) = ∞$ elsewhere.
The locations of the internal nodes of the eigenfunctions $\Psi _n(x), n≥2$, are
[Given: m is an integer such that 0<m<n]

The number of CO stretching bands in the infrared spectrum of $Fe(CO)_5$ is

The standard Gibbs free energy change for the reaction
$H_2O (g) → H_2 (g) + ½ O_2(g)$ at 2500 K is $+118 kJ mol^{-1}$
The equilibrium constant for the reaction is
[Given: $R= 8.314 J K^{-1} mol^{-1}$]

Among the following, the reaction(s) that favor(s) the formation of the products at 25 °C is/are

Among the following, the correct statement(s) is/are:

The compound(s) that participate(s) in Diels-Alder reaction with maleic anhydride is/are

Among the following, the suitable route(s) for the conversion of benzaldehyde to acetophenone is/are

The reaction involve(s)

The reason(s) for the lower stability of $Si_2H_6$ compared to $C_2H_6$ is/are

For an N-atom nonlinear polyatomic gas, the constant volume molar heat capacity Cv,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 Cv,m is/are

Zinc containing enzyme(s) is/are

The conversion of $ICl$ to $ICl^+$ involve(s)

The common point defect(s) in a solid is/are

Among of the following

the number of aromatic compounds is _______ .

The number of stereoisomers possible for the major product formed in the reaction

is ________.

The number of signals observed in the $^1H NMR$ spectrum of the compound

is _________.

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)