List of top Chemistry Questions

Which of the following aqueous solution has minimum freezing point?

The basic unit of nucleic acid is

The bleaching action of chlorine is due to

The correct order of decreasing polarisability of the ions is

$PCl_3$ reacts with water to form

Cinnabar is an ore of

The maximum number of electrons, present in an orbit that is represented by azimuthal quantum number $(l)=3$, will be

In a given atom no two electrons can have the same values of all the four quantum numbers. This is called

Aqueous solution of acetic acid contains

An $sp^3$ hybrid orbital contains

In sodium fusion test of organic compounds, the nitrogen of the organic compound is converted into

A $5$ molar solution of $H_2SO_4$ is diluted from 1 litre to a volume of 10 litres, the normality of the solution will be

The order of filling of electrons in the orbitals of an atom will be

For orthorhombic system axial ratios are $a \ne b \ne c$ and the axial angles are

$P_2O_5$ is heated with water to give

The electronic configuration of Cu (at.no. = 29) is

Basicity of orthophosphoric acid is

Pure nitrogen is prepared in the laboratory by heating a mixture of

$PH_4I + NaOH$ forms

On hydrolysis of starch, we finally get

The transition elements have a general electronic configuration.

Which would quickly absorb oxygen?

Oleum is

Phosphine may be produced by adding lo water some

The relative lowering of the vapour pressure is equal to the ratio between the number of