List of top Chemistry Questions

Which of the following is the correct order of their increasing boiling points?

Which type of ligand is EDTA?

The density of a gas A is thrice that of a gas B at the same temperature. The molecular weight of gas B is twice that of A. What will be the ratio of pressure acting on B and A?

The specific conductivity of a solution containing 1.0 g of anhydrous BaCl\(_2\) in 200 cm\(^3\) of the solution has been found to be 0.0058 Scm\(^{-1}\). The molar and equivalent conductivity of the solution respectively are:

Which of the following is most stable?

For the reaction \(2N_2O_5 \rightarrow 4NO_2 + O_2\), rate constant \(k = 4.48 \times 10^{-5} \, \text{s}^{-1}\) and the initial pressure is 600 atm. After 10 min, determine the final pressure of \(N_2O_5\):

In the chemical reaction, \[ \text{N}_2 + 3\text{H}_2 \rightleftharpoons 2\text{NH}_3 \text{ at equilibrium point.} \] Which statement is correct?

The change in the energy of the system if 500 cal of heat energy are added to a system and the system does 350 cal of work on the surroundings will be:

The vacant space in the bcc lattice cell is:

Which of the following is not an antacid?

The melting of ice:

The chemical formula of Hinsberg's reagent is:

Which of the following colloids resemble the true solutions?

Which of the following options represent the correct composition of Dettol?

The increasing order of atomic radii of the following group 13 elements is:

Identify the pair of gases that have equal rates of diffusion:

For the equilibrium, \[ 2NOCl (g) \rightleftharpoons 2NO (g) + Cl_2 (g) \] The value of the equilibrium constant, \( K_c \), is \( 3.75 \times 10^{-6} \) at 1069 K. The value of \( K_p \) for the reaction at this temperature will be:

The reducing agent which is used to reduce iron oxide in blast furnace is:

Coupling reaction is an example of:

Arrange the following artificial sweetening agents in order of increasing sweetness: \[ \text{Aspartame, Saccharin, Sucralose, Acesulfame} \]

In 3d-transition series, which one has the least melting point?

Among the following enzymes, which one is involved in the given below catalytic reaction? \[ C_6H_{12}O_6 (aq) \rightarrow 2C_2H_5OH (aq) + 2CO_2 (g) \]

How much part of any corner atom actually belongs to a particular unit cell?

Which of the following pairs of ions are iso-electronic and iso-structural?

Rate constant \( K \) of a reaction has least value at