List of top Chemistry Questions

Benzene on heating with conc. $H_2SO_4$ gives benzenesulphonic acid which when heated with superheated steam under pressure gives benzene. Sulphonation is a reversible process.
A primary amine has higher boiling point than any tertiary amine. A tertiary amine has greater number of $N - H$ bonds for $H$-bonding.
During smelting an additional substance is added which combines with impurities to form a fusible product which is known as
The colloidal system in which the disperse phase and dispersion medium are both liquids is known as
Isotonic solutions are the solutions having the same
Which of the following is used to make non-stick cookware?
The units of conductivity are
Nylon-6 is made from
An example of water soluble vitamin is
What is the freezing point of a solution containing $ \text{8}\text{.1 g HBr} $ in 100 g water assuming the acid to be 90% ionised? ( $ {{k}_{f}} $ for water $ =1.86\,\text{K}\,\text{mo}{{\text{l}}^{-1}} $ )
Which of the following is optically active?
Which of the following is paramagnetic with bond order $0.5$?
Which of the following statements is true for the electrochemical Daniell cell?
Which of the following thermodynamic relation is correct ?
Which one of the following compounds is a peroxide?
Which one of the following compounds has the most acidic nature?
Which one of the following ions has electronic configuration $[Ar] 3d^6 ? $ (At.no. $Mn =25, Fe = 26,Co =27, Ni = 28)$
Which one of the following molecular hydrides acts as a Lewis acid?
Which of the following conformers for ethylene glycol is most stable ?
van der Waals equation of state is obeyed by real gases. For $ n $ moles of a real gas, the expression will be
Insulin, a hormone, chemically is
Given are cyclohexanol (I), acetic acid (II), 2, 4, 6-trinitrophenol (III) and phenol (IV). In these, the order of decreasing acidic character will be
Electron affinity is maximum for
Drying oil invariably contains
Which of the following configurations represents the metallic element?