Question

Which of the following statements are correct regarding fixation of atmospheric dinitrogen:

• A. Chemical processes involving the fixation of atmospheric dinitrogen include the Haber-Bosch process for ammonia
• B. Bacteria can fix dinitrogen easily at room temperature and atmospheric pressure
• C. The most important nitrogen fixing genus of bacteria is called, Rhizobium
• D. Man requires expensive plant with high temperatures and pressures to fix the dinitrogen

Answer 1

Answer: (A), (B), (C), (D)

Man requires expensive plant with high temperatures and pressures to fix the dinitrogen

A few species of bacteria and cyanobacteria can fix atmospheric dinitrogen, that is can convert $N_2$ gas into combined forms. These bacteria can have great effect on the fertility of soil by producing combined nitrogen. The most important nitrogen fixing genus of bacteria is called, Rhizobium.
Chemical process involving the fixation of atmospheric dinitrogen include the Haber-Bosch process for ammonia, and the formation of calcium cyanide, which both involve the use of high temperature and pressure. Bacteria can fix dinitrogen easily at room temperature and atmospheric pressure.