List of top Chemistry Questions

Taj Mahal is threatened by pollution from

Take a living tissue, grind it in trichloroacetic acid using pestle and mortar, and then strain it, you would obtain two fractions: acid-soluble and acid-insoluble fraction. Acid-insoluble fraction does not contain

Systematic name of urea is

t-RNA is a polymer of

Synthetic rubber (Neoprene) is

Systematic name of $H_2O$ is

Suppose ideal gas equation follows $VP^3 =$ constant. Initial temperature and volume of gas are T and V respectively. If gas expands to 27V, then its temperature will become

Super conductors are derived from compounds of

Super halogen is

Sulphuryl chloride, $SO_2Cl_2$, reacts with $H_2O$ to give mixture of $H_2SO_4$ and HCl. Aqueous solution of 1 mol $SO_2Cl_2$ will be neutralised by

Sulphur trioxide is not directly dissolved in water to form sulphuric acid because

Sulphuric acid reacts with $PCl_5$ to give

Sulphur molecule is

Sulphur monochloride reacts with ethene to form

Sulphide ores are generally concentrated by

Sulpha drugs are used for

Sulphide ion $(S^{2-})$ reacts with solid sulphur forming $S^{2-}_2$ and $S^{2-}_3$ with formation constants 12 and 132 respectively. Formation constant of $S^{2-}_3$ from sulphur and $S^{2-}_2$ is :

Substances whose solutions can readily diffuse through parchment membrane are

Structure of boric acid is

Stephen's reduction is used to prepare aldehyde from :

Stephen's reduction converts nitriles into

Statement 1. A gas at high temperature and low pressure behaves as an ideal gas.$\,$ Statement 2, A gas in which intermolecular forces are zero is called ideal gas

Statement-1 : BO is acidic. Statement-2 : AlO and GaO are Amphoteric. Statement-3 : In O and T$\ell_2$O are basic in nature. No. of correct statements are -

State of hybridisation of carbon atom of carbene in the singlet state is

Spraying of DDT produces pollution of