List of top Chemistry Questions

The emf of the cell involving the following reaction $ {2Ag^+ + H_2 -> 2Ag + 2H^+} $ is $ 0.80 \,Volt $ . The standard oxidation potential of silver electrode is

An alkyl cyanide forms an amide when it is treated with

Among the following the ambidentate ligand is

$AgNO_3$ (aqueous) was added to an aqueous $KCl$ solution gradually and the conductivity of the solution was measured. The plot of conductance $\Lambda$ versus the volume of $AgNO_3$ is

Amongst the given options, the compound(s) in which all the atoms are in one plane in all the possible conformations (if any), is/are

Extra pure $N_2$ can be obtained by heating

Oxidation states of the metal in the minerals haematite and magnetite, respectively, are

Passing $H_2 S$ gas into a mixture of $Mn^{2+}, Ni^{2+}, Cu^{2+}$ and $Hg^{2+}$ ions in an acidified aqueous solution precipitates

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 oxyacid of sulphur that contains a lone pair of electrons on sulphur is

The hybridization involved in $ PCl_5$ 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

The hybridisation state of carbon in fullerene is

Total volume of atoms present in a face centred cubic unit cell of a metal is ($r$ is atomic radius)

The set representing the correct order for first ionisation potential is

Heisenberg?s uncertainty principle can be explained as