List of top Chemistry Questions

Oxidation states of the metal in the minerals haematite and magnetite, respectively, are
The correct statement(s) pertaining to the adsorption of a gas on a solid surface is (are)
In diborane, each boron atom uses
The paramagnetic oxides of nitrogen are
In which of the following molecules the central atom has two lone pairs of electrons?
The hybridization involved in $ PCl_5$ is
The oxyacid of sulphur that contains a lone pair of electrons on sulphur is
Among the following which one is a linear molecule having zero dipole moment?
Which of the following releases maximum energy on combustion in $kJ$ per mole state?
Decreasing order of stability of hydrogen halide is
Which one of the following is the most electronegative element configuration?
Stereoisomers differ in
Reaction of ethyl formate with excess of ${CH_3Mgl}$ followed by hydrolysis gives
Gold number is associated with
Total volume of atoms present in a face centred cubic unit cell of a metal is ($r$ is atomic radius)
The hybridisation state of carbon in fullerene is
The set representing the correct order for first ionisation potential is
Heisenberg?s uncertainty principle can be explained as
Which of the following is not reducing sugar?
The yellow precipitate formed during the chromyl chloride test is chemically _____
The IUPAC name of these is
Select the detergent that is used to prepare cosmetics.
Which of the following compounds, when heated at 483 K turns to caramel?
Which of the following is phenyl ethanoate?
Show the coordination number of the metal ion, its oxidation number, the number of electrons ind-orbitals and the number of unpaired electrons in d-orbitals respectively in complex $[Co(H_2O)_4SO_3 ]Cl.$