List of top Chemistry Questions

The vacant space in the bcc lattice cell is:
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:
Which of the following is not an antacid?
Which of the following options represent the correct composition of Dettol?
The chemical formula of Hinsberg's reagent is:
The melting of ice:
The increasing order of atomic radii of the following group 13 elements is:
Which of the following colloids resemble the true solutions?
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:
Arrange the following artificial sweetening agents in order of increasing sweetness: \[ \text{Aspartame, Saccharin, Sucralose, Acesulfame} \]
Coupling reaction is an example of:
Identify the pair of gases that have equal rates of diffusion:
The reducing agent which is used to reduce iron oxide in blast furnace is:
In 3d-transition series, which one has the least melting point?
Which of the following pairs of ions are iso-electronic and iso-structural?
How much part of any corner atom actually belongs to a particular unit cell?
Among the following enzymes, which one is involved in the given below catalytic reaction? \[ C_6H_{12}O_6 (aq) \rightarrow 2C_2H_5OH (aq) + 2CO_2 (g) \]
Rate constant \( K \) of a reaction has least value at
In the equilibrium, \( AB \rightleftharpoons A + B \), if the equilibrium concentration of A is double, then the equilibrium concentration of B will be:
Find the correct order of \( \text{C} - \text{O} \) bond length among \( \text{CO}, \text{CO}_3^{2-}, \text{CO}_2 \).
Which of the following is used as a drug to reduce fever?
Which of the following amino acids \( \text{NH}_2 \text{CH} \text{RCOOH} \) contains a polar R group?
The reaction: \[ \text{ArN}^{+} \text{Cl}^{-} \xrightarrow{\text{Cu/HCl}} \text{ArCl} + N_2 + \text{CuCl} \] is called as:
The total number of nodes is given by:
Sodium metal crystallizes in a body-centred cubic lattice with a unit cell edge of 4.29 Å. The radius of sodium atom is: