List of top Chemistry Questions

Which of the following electronic configuration violating Hund's rule ?
The classification of elements which is based on atomic number is
Order of energy of orbitals
Four quantum numbers of valence electron of sodium
Mixing acid to water is
Bleaching Powder is formed from
Which one of the following electromagnetic radiation has more frequency?
The total number of atomic orbitals in third shell of an atom
Which of the following artificial sweeteners can be used in soft drinks only?
The equilibrium constant, \(K_C\) for \(3C_2H_2(g) \rightleftharpoons C_6H_6(g)\) is 4 L\(^2\)mol\(^{-2}\). If the equilibrium concentration of benzene is 0.5 mol/L, then what is the value of concentration of ethylene?
A commercially sold conc. HCl is 35% HCl by mass. If the density of this commercial acid is 1.46 g/mL, the molarity of this solution is :
(Atomic mass : Cl = 35.5 amu, H = 1 amu)

Which among the following reactions does NOT form alkyl halides?

Which property of CO2 makes it biologically and geo-Chemically important?
The P – O bond order in \( \text{PO}_4^{3-} \) is
Which of the following is used to prepare the inner lining of a blast furnace?
What is the function of platelets?
The oxidation state of nickel in [Ni(CO)_4] is
The relation between work done in reversible and irreversible process is
The complex which does not show optical isomerism is
The monosaccharides of maltose is
On treatment of glucose with bromine water the product formed is
Which of the following vitamin is responsible for beri-beri disease?
Which of the following show both Frenkel and Schottky defect?
How many atoms are present in hcp per unit cell?
Which of the following molecules does not exhibit dipole moment?
(i) CCl$_4$
(ii) CO$_2$
(iii) NH$_3$
(iv) CHCl$_3$
(v) H$_2$O
(vi) CH$_3$–O–CH$_3$