List of top Questions asked in IIT JAM CY

The major product formed in the following reaction is
The major product formed in the following reaction is catalyst NaCN acetone,
The major product formed in the following reaction is
The major product formed in the following reaction is (catalyst NaOMe and MeOH),
The major product formed in the reaction of (28,3R)-2-chloro-3-phenylbutane with NaOEt in EtOH is
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]
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)
The number of CO stretching bands in the infrared spectrum of $Fe(CO)_5$ is
The B-B bond order in $B_2$ is ______.
The number of signals observed in the $^1H NMR$ spectrum of the compound
The number of signals observed in the $^1H NMR$ spectrum of the compound
is _________.
The number of stereoisomers possible for the major product formed in the reaction
The number of stereoisomers possible for the major product formed in the reaction is _______.
is ________.
The common point defect(s) in a solid is/are
The number of unpaired electrons in $[Co(H_2O)_6]^{2+} is ________.
The compound(s) that participate(s) in Diels-Alder reaction with maleic anhydride is/are
The order of increasing CO stretching frequencies in $[Co(CO)_4]^-, [Cu(CO)_4]^+, [Fe(CO)_4]^{2-} and [Ni(CO_4)]$ is
A galvanic electrochemical cell made of Zn2+/Zn and Cu2+/Cu half-cells produces 1.10 V at 25°C. The ratio of |Zn2+| to |Cu2+| is maintained at 1.0. The ΔG° for the reaction when 1.0 mol of Zn gets dissolved is____kJ. (round off to the nearest integer)
[Given: Faraday's constant = 96485 C mol-1]
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 ____________. (round off to the nearest integer)
Total degeneracy (number of microstates) for a Ti3+ ion in spherical symmetry is ____.
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]
Iron is extracted from its ore via the reaction
$Fe_2O_3, + 3 CO→ 2 Fe + 3CO_2$
The volume of CO (at STP) required to produce 1 kg of iron is ________liters. (round off to the nearest integer)
[Given: Atomic wt. of Fe = 56; assume STP to be 0 °C and 1 atm]
For the reaction
$H_2PO_2^- (aq) + OH^- (aq) → HPO_3^{2-} (aq) + H_2(g)$
the rate expression is $k[H_2PO_2 ][OH ]^2$. If the concentration of $H_2PO_2^-$ is
Among the following, the biomolecule with a direct metal-carbon bond is
The nature of interaction involved at the gas-solid interface in physisorption is
The reagent required for the following transformation
reagent required for the following transformation is
The structure of $[XeF_8]^{2-} $ is
Which one of the following options is best suited for effecting the transformation?
Which one of the following options is best suited for effecting the transformation?