List of top Chemistry Questions

Which one of the following oxides is neutral?
Blister copper is
Which of the following gas molecules have equal total kinetic energy and translational kinetic energy?
Which of the following is a characteristic of a reversible reaction?
Bauxite, an ore of aluminium is purified by
Which of the following is formed, when benzaldehyde reacts with alcoholic $KCN$ ?
Glycerol is not used in
A radioactive nuclide decays at such a rate that after $96$ min, only $1/8th$ of the original amount remains. The value of half-life of the nuclide is
In the $P ^{3}, S ^{2}$. and $Cl^-$ ions, the increasing order of size is
The molecular weight of benzoic acid in benzene as determined by depression in freezing point method corresponds to
Sodium thiosulphate is prepared by
$KF$ combines with $HF$ to form $KHF_2.$ The compound contains the species
If $\alpha$ is the fraction of HI dissociated at equilibrium in the reaction, ${ 2HI(g) <=> H_2(g)+I_2(g)}$ starting with the 2 moles of HI, then the total number of moles of reactants and products at equilibrium are
Which of the following is the least stable and its existence is doubtful ?
An aqueous solution $FeSO_4 . Al_2(SO_4 )_3$ and chrome alum is heated with excess of $Na_2 0_2$ and filtered. The materials obtained are
Which one of the following oxides is neutral ?
Hydrolysis of one mole of peroxodisulphuric acid produces
A dilute aqueous solution of $ Na_2SO_4 $ is electrolysed using platinum electrodes. The products at the anode and cathode are respectively
Which of the following ion in aqueous medium has orange colour?
Which of the following acids, will be able to give silver mirror test?
What is the oxidation number of chromium in chromyl chloride?
The number of possible optical isomers of lactic acid are:
The molar conductivity of an aqueous solution of strong electrolyte:
Ethyl amine reacts with $ HN{{O}_{2}} $ to give:
Emulsifier is an agent which: