Advertisements
Advertisements
प्रश्न
How is nitrogen prepared in the laboratory? Write the chemical equations of the reactions involved.
Advertisements
उत्तर
In the laboratory, dinitrogen is prepared by heating an aqueous solution of ammonium chloride and sodium nitrite.
\[\ce{NH4Cl_{(aq)} + NaNO2_{(aq)} ->[Heat] NaCl_{(aq)} + 2H2O_{(l)} + N2_{(g)}}\]
This reaction also produces trace amounts of nitric acid (HNO3) and nitric oxide (NO). By passing the developed gas through an aqueous sulphuric acid solution containing potassium dichromate, the resulting dinitrogen is purified.
संबंधित प्रश्न
What is the covalence of nitrogen in N2O5?
Explain why NH3 is basic while BiH3 is only feebly basic.
Write balanced chemical equations for action of potassium permanganate on Warm conc. sulphuric acid
Account for the following :
Bond angle in NH+4NH4+ is higher than NH3.
Which of the following statements is not correct for nitrogen?
Pick out the wrong statement.
Among the 15th group elements, as we move from nitrogen to bismuth, the pentavalency becomes less pronounced and trivalency becomes more pronounced due to:
Which of the following oxides is neutral?
A deep brown gas is formed by mixing two colourless gases which are:
The laughing gas is ____________.
Which of the following elements can be involved in pπ – dπ bonding?
HCl is added to following oxides. Which one would give H2O2
Which oxide of nitrogen is obtained on heating ammonium nitrate at 250°C?
Heating white phosphorus with conc. NaOH solution gives mainly ______.
Assertion: Nitrogen and oxygen are the main components in the atmosphere but these do not react to form oxides of nitrogen.
Reason: The reaction between nitrogen and oxygen requires high temperature.
