Nitrogen

Which is true regarding nitrogen ?

The product obtained when $\mathrm{Li}$ reacts with nitrogen is 

Give two examples to show the reaction of nitrogen with metals.

Nitrogen supports combustion.

Nitrogen can be prepared in the laboratory by heating a mixture of sodium nitrite and ______.

${\mathrm{NaNO}}_2+{\mathrm{NH}}_4\mathrm{Cl}\to \mathrm{A}+\mathrm{B}$. The compounds A and B are:

Which compound is used in the laboratory preparation of nitrogen?

Write the equation for the formation of dinitrogen in lab?

Why is ${\mathrm{N}}_2$ rather inert at room temperature?

What is the action of nitrogen on 

Magnesium

The correct order of the Nitrogen compounds in its decreasing order of oxidation states are

Which statement is not correct for nitrogen?

Which of the following statements is wrong?

Among the following compounds, which on heating does not produce ${\mathrm{N}}_2$?