List of top Chemistry Questions

The calorific value of fat is

The basicity of $H_3PO_4$ is

The aqueous solution of which of the following has maximum pH ?

The acid used in lead storage cells is

Sweet spirit of nitre is

Sulphuric acid provides a simple example of

Species Plantarum and Systema Naturae were written by

Smoke is an example of :

Small liquid droplets dispersed in another liquid is called

$SiO_2$ is a/an

$SiH_4 + NaOH + H_2O-------> X + 3H_2 X$ in the above reaction is

Select the species acting as reductant and oxidant in the following. $ {PCl3 + Cl2 -> PCl5}$

Sea divers go deep in the sea water with a mixture of which of the following gases?

Red colour complex ion formed on adding $FeCl_3$ to S.E. (sodium extract) when N and S both are present in organic compound is

A unit in nucleic acid which contains ??ase-sugar phosphate??unit is called

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

In colloid particles, range of diameter is

Moderate electrical conductivity is shown by

Identify the correct statements from the following a) Li and Mg form solid hydrogen carbonates b) LiCl and $ {MgCl_2}$ are soluble in ethanol c) $ {KO_2}$ is soluble in water and liberates $ {O_2}$ and $ {H2O_2}$

Calculate the volume (in L) of hydrogen gas liberated at $27^{\circ}C$ and 760 mm pressure during the treatment of 1.2 g of magnesium with excess hydrochloric acid [Atomic mass of Mg = 24]

Match the column I and column II and mark the appropriate choice.

Match the column I with column II and mark the appropriate choice.

Match L ist-I with List-II. Choose the correct answer from the options given below.

What is the approximate percentage of $ {{H}_{2}}{{O}_{2}} $ in a sample labelled as 10 vol?

The reaction which carried out in the presence of homogeneous catalyst is