List of top Chemistry Questions on General Chemistry asked in IIT JAM CY

Among the following, the anti-aromatic compound(s) is (are)

The major products E and F formed in the following reactions are 

For the following fusion reaction, \[ {}^1_1\text{H} + {}^1_1\text{H} \longrightarrow {}^4_2\text{He} + 2\beta^+ + 2\nu + \gamma \] The Q-value (energy of the reaction) in MeV (rounded off to one decimal place) is ________. (Given: Mass of ${}^1$H nucleus = 1.007825 u; Mass of ${}^4$He nucleus = 4.002604 u)
The functional group(s) in reducing sugar that tests positive with Tollen’s reagent is (are)
Titanium tetrachloride (TiCl$_4$) reacts with THF to form an octahedral complex X under inert atmosphere at 25°C. If 5.0 g of TiCl$_4$ is used and the yield is 80%, the amount of X (in grams) formed is .......... (Round off to one decimal place) (Use atomic weights: Ti = 48, Cl = 35.5, O = 16, C = 12, H = 1)

A first order reflection of X-ray from the 220 plane of copper crystal is observed at a glancing angle of 22°. The wavelength of the X-ray used is ................ pm. (Round off to one decimal place) 
[Given: Copper forms an fcc crystal with a unit cell edge length of 361 pm.]
 

The turnover frequency (TOF) for the catalytic reaction, 
\[ \text{A (1 mol) } \xrightarrow{\text{Catalyst (0.01 mol)}} \text{ B} \] with 90% yield of the product is ................ hour\(^{-1}\). (Round off to the nearest integer)
 

One mole of an ideal gas is subjected to an isothermal increase in pressure from 100 kPa to 1000 kPa at 300 K. The change in Gibbs free energy of the system is ................ kJ mol\(^{-1}\). (Round off to one decimal place) 
[Given: Gas constant (R) = 8.3 J K\(^{-1}\) mol\(^{-1}\)]
 

The number of gauche-butane interaction(s) in the following compound is ................ 

The increasing order of acidity of the given molecules in aqueous media is 

In 1H NMR spectrum of the given molecule, the correct order of chemical shifts of the labelled protons (H$^X$, H$^Y$, H$^Z$) is 

The complementary strand for the following single strand of DNA is 

The correct order of wavelength ($\lambda_{max}$) of the halide to metal charge-transfer band of [Co(NH$_3$)$_5$Cl]$^{2+}$ (I), [Co(NH$_3$)$_5$Br]$^{2+}$ (II) and [Co(NH$_3$)$_5$I]$^{2+}$ (III), is
The collision flux of a monoatomic gas on copper surface is \(3.0 \times 10^{18}\) m\(^-2\) s\(^{-1}\). Note that copper surface forms a square lattice with lattice constant of 210 pm. If the sticking coefficient of the atom with copper is 1.0, the time taken by the gas to form a complete monolayer on the surface is ................ s. (Round off to one decimal place)
The value of \(n\) for the complex [Fe(CO)\(_4\)(SiMe\(_3\))]^\(n\) satisfying the 18-electron rule is ................
Number of vertices in an icosahedral closo-borane is ................
The correct statement(s) among the following is/are
The unit of the constant ‘a’ in van der Waals equation of state of a real gas can be expressed as
Among the following, microwave active molecule(s) is/are
The true statement(s) regarding the brown ring test carried out in the laboratory for the detection of NO\(_3^-\) is/are
The compound formed upon subjecting an aliphatic amine to Lassaigne’s test is
Among the following, the correct statement is
The ratio of the nearest neighbor atomic distances in body-centered cubic (bcc) and face-centered cubic (fcc) crystals with the same unit cell edge length is
The total number of degrees of freedom of an HBr molecule that is constrained to translate along a straight line but does not have any constraints for its rotation and vibration is