List of top Chemistry Questions

Which of the following ions are diamagnetic?

The hydrolysis products of $\mathrm{ICl}$, $\mathrm{ClF_3}$, and $\mathrm{BrF_5}$ are respectively:

Calculate the density of a solid (g/ml) with a CCP (Cubic close packed) structure. The edge length of unit cell is 400 pm. The molar mass of solid is 105.6 g/mol.

Which of the following statements is/are true about equilibrium?

Total pressure of the solution is 500, the partial pressure of component A is 400, and the partial pressure of component B is 575. What is the mole fraction of component B?

Assertion (A): The boiling point of ethanol is higher than that of methoxymethane.
Reason (R): There is intramolecular hydrogen bonding in ethanol.

Energy and radius of first Bohr orbit of He$^+$ and Li$^2+$ are:
Given: $ R_H = 2.18 \times 10^{-18} \, \text{J}, a_0 = 52.9 \, \text{pm} $

For the thermal decomposition of $ N_2O_5(g) $ at constant volume, the following table can be formed, for the reaction mentioned below: \[ 2 N_2O_5(g) \rightarrow 2 N_2O_4(g) + O_2(g) \] Given: Rate constant for the reaction is $ 4.606 \times 10^{-2} \text{ s}^{-1} $.

O$_2$ gas will be evolved as a product of electrolysis of:
(A) an aqueous solution of AgNO3 using silver electrodes.
(B) an aqueous solution of AgNO3 using platinum electrodes.
(C) a dilute solution of H2SO4 using platinum electrodes.
(D) a high concentration solution of H2SO4 using platinum electrodes.
Choose the correct answer from the options given below :