List of top Chemistry Questions

Hess??law is applicable for the determination of heat of
The compound which on reaction with aqueous nitrous acid at low temperature produces an oily nitrosoamine is
Oxidation state of chlorine in hypochlorous acid is
In the periodic table, the element with atomic number 16 will be placed in the group
Directed bond in water form an angle of
In the presence of acid,the hydrolysis of methyl cyanide gives
Which of the following compound gives dye test ?
Among the elements given below, the one with highest electropositivity is
Collective name given to the elements with outer shell configuration $ns^2np^6$ is
Which reaction is suitable for preparing $\alpha$-Chloroacetic acid ?
Baeyer?? reagent is used in the laboratory for
Both chlorine and sulphur dioxide act as bleaching agents. Chlorine bleaches by vigorous oxidation, while sulphur dioxide bleaches by mild reduction.
Alkali metals impart colour to the flame. Their ionisation energies are low.
The functional group which is found in amino acid is
Which one of the following ionic species will impart colour to an aqueous solution ?
Iodoform test is not given by
The most reactive compound, for the electrophilic nitration, is
The physical adsorption of gases on the solid surface is due to
Which of the following explains the sequence of filling the electrons in different shells?
In the gas equation: $PV = nRT$
The oxidation numbers of hydrogen in $K H ,\, MgH _{2}$ and $NaH$ are respectively
Which of the following does not show hydrogen bonding?
Which of the following is the most electropositive element?
Which of the following compounds will show geometrical isomerism?
According to Fajans rule covalent bond is favoured by: