List of top Chemistry Questions

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 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:
Which of the following is used as a drug to reduce fever?
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:
An aqueous solution of \( X \) on addition of hydrogen peroxide in ice-cold conditions gives blue colour to the ethereal layer. Then, \( X \) can be:
Under which of the following conditions, the gases does not follow Henry's law?
Determine the specific rate constant of the reaction. If the half-life period of a first-order reaction is 1402 s, then the rate constant is:
Which one of the following sets of monosaccharides forms sucrose?
Carbon monoxide is poisonous to human beings because:
The valency of Calcium is
Which of the following atomic numbers of elements have similar chemical properties?
When the equation,\(\text{Na} + \text{H}_2\text{O} \rightarrow \text{NaOH} + \text{H}_2\) is balanced,what is the coefficient for 'Na' ?
The chemical reaction in which heat is absorbed is called
Atomic number of an element is 17 then the period to which this element belongs
Which one of the following is not a product in the electrolysis of aqueous NaCl ?
Which of the following is not an inert gas element ?
When n = 4, the total number of subshells in an orbit is n =
The quantum number which explains about the spacial orientation of orbitals is
Which of the following is an ore of Iron ?
Which of the following has larger wavelength in electromagnetic spectrum?
In electrolytic refining of metals, the pure metal is taken as
The reaction that takes place in Thermite process is