Question

Under what conditions can hydrogen be made to combine with: ​ nitrogen? ​
Name the product and write the reaction in each case.​

Answer 1

Three volumes of hydrogen and one volume of nitrogen react at a temperature of $450-500\circ C$ and pressurearoumd 200- 400 atm in the presence of finely divided iron catalyst with molybdenum as promoter to give the product named ammonia.
The reaction is,

$N_2+3H_2\rightleftharpoons 2N{H}_3$