List of top Chemistry Questions

The vacant space in the bcc lattice cell is:
Why do ketones and carboxylic acids have higher boiling points as compared to aldehydes?
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:
In the chemical reaction, \[ \text{N}_2 + 3\text{H}_2 \rightleftharpoons 2\text{NH}_3 \text{ at equilibrium point.} \] Which statement is correct?
Find the final product for the reaction: \[ \text{C}_6\text{H}_5\text{CHO} + \text{CH}_3\text{CO}\text{C}_6\text{H}_5 \xrightarrow{\text{OH}^-, 293 K} \text{Product} \]
The chemical formula of Hinsberg's reagent is:
The increasing order of atomic radii of the following group 13 elements is:
Which of the following colloids resemble the true solutions?
Which of the following options represent the correct composition of Dettol?
The melting of ice:
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: \[ \text{Aspartame, Saccharin, Sucralose, Acesulfame} \]
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:
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?
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
Which of the following is correct mixture of azeotrope?
In 3d-transition series, which one has the least melting point?
Which of the following is used as a drug to reduce fever?
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 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: