List of top Chemistry Questions

Which of the following is not a mineral of iron?
Which among the following noble gases is not found in air?
A solid melts slightly above 273 K and is a poor conduct or of heat and electricity. To which of the following categories does it belong ?
The order of a reaction with rate equal to $kC_A^{3/2} C_B^{-1/2}$ is
The chemical name of vitamin $B_{1}$ is
The $AsF_5$ molecule is trigonal bipyramidal. The hybrid orbitals used by the As atoms for bonding are
The most reactive compound towards formation of cyanohydrin on treatment with HCN followed by acidification is
Which of the following has a regular geometry?
Which of the following is a trisaccharide ?
Which of the following is most abundant in the earth's crust ?
The type of teeth present in humans is
In Periodic Table, the basic character of oxides
Fehling $A$ and Fehling $B$ are
Ethyl methyl ketone is obtained by heating calcium salts of
$ CH_3COOH $ when reacts with $ C_2H_5OH $ gives a product. The same product is obtained by which reaction ?
When same quantity of electricity is passed for the amount of $Cu$ and $Cr$ deposited are respectively $0.375\, g$ and $0.30\, g$. Ratio of electrochemical equivalents of $Cu$ and $Cr$ is
The diagonal partner of element $B$ is
Boiling point of ethyl alcohol is greater than ether due to
If a species has $16$ protons, $18$ electrons and $16$ neutrons, find the species and its charge
In Sommerfeld?s modification of Bohr?s theory, the trajectory of an electron in a hydrogen atom is
Which of the following represents the arrangement in increasing order of bond order and bond dissociation energy?
Which of the following is an appropriate set of reactants for the preparation of $1$ -methoxy-$4$ nitrobenzene?
Which of the following is extracted from sea weeds ?
Which of the following is non-existent ?
Which of the following is not an artificial sweetener ?