List of top Chemistry Questions

Describe the Standard Hydrogen Electrode (SHE) with a labeled diagram and its cell reaction.

State Henry’s Law regarding the solubility of gases in liquids and mention two daily-life applications.

Calculate the mass percentage of benzene if 22 g of benzene is dissolved in 122 g of carbon tetrachloride.

Which ligand causes maximum crystal field splitting?

The standard electrode potential of the standard hydrogen electrode (SHE) is:

In IR spectroscopy, which bond absorbs at the highest wavenumber?

For an ideal gas, which of the following thermodynamic quantities depends only on temperature?

Which of the following has tetrahedral coordination?

Given $C_p = a + bT$
$a = 19.5$, $b = 0.042$, $n = 1$ mole
Temperature changes from $27^\circ C$ to $327^\circ C$.
Find $\Delta H$.

Compare the M–C bond length in the following complexes:
$Na_2[Mn(CO)_4]$, $Na[Mn(CO)_5]$, $Na[Mn(CO)_6]$.

T-shape geometry is shown by

Among the following compounds of Xenon, identify those having exactly one lone pair on Xenon:
$XeF_2$, $XeO_2F_2$, $XeO_3$, $XeO_3F_2$, $XeOF_2$.

The radioactive decay is given as: \[ {}^{238}_{92}U \rightarrow {}^{210}_{82}Pb + 7\alpha + x\beta^{-}. \] Find the value of $x$.

For the reaction: \[ N_2O_3(g) \rightarrow NO(g) + NO_2(g) \] If the degree of dissociation is $\alpha = 0.2$, find $\Delta n_g$ and total number of moles at equilibrium (starting with 1 mole).

Which of the following has the highest melting point?

Isothermal compressibility of an ideal gas \[ -\frac{1}{V}\left(\frac{dV}{dP}\right)_T \] is equal to

Write the van der Waals equation and explain the van der Waals isotherm (P–V curve).

Langmuir isotherm

List the compounds of Xenon having one lone pair on the central atom.

Find the interplanar spacing $d_{hkl}$ (in Å) using Bragg’s law.
Given: $n = 1$, $\lambda = 1.54\,\text{Å}$
Use Bragg’s law: $n\lambda = 2d\sin\theta$.