The brown coloration in nitric acid prepared in the labor...
The brown coloration in nitric acid prepared in the laboratory can be removed by?
heating the acid
bubbling air through the acid
cooling the acid
adding a decolorizing agent
adding a base
Correct answer is B
The color of nitrogen dioxide is reddish brown. This nitrogen dioxide when comes in contact with acid appears yellow in color.
This means the color of nitric acid can be removed by bubbling air through acid.
In the redox reaction2Fe2++CI2→2Fe3++2Cl− ...
Consider the following reaction equation: 2SO3(g)→2SO2(g)+O2(g) ∆H = +198 kJ/mol...
Geometric isomerism can exist in ...
How many orbitals are in the d-sub shell? ...
What is the chemical symbol for Rhenium? ...
A reducing agent is expected to ...
Which of the following properties is not peculiar to matter? ...
WHICH OF THE FOLLOWING PETROLEUM FRACTIONS YIELDS VASELINE AND PARAFFIN WAX ON REDISTILLATION? ...