Question

Denitrification is the process of conversion of:

• A. Ammonia into nitrates
• B. Nitrate salts to free nitrogen
• C. Complex organic compounds into ammonia
• D. Free nitrogen to ammonia

Answer 1

Answer: (B)

Nitrate salts to free nitrogen

Denitrification is a microbially facilitated process where nitrate $\left({N{O}_3}^{-}\right)$ is reduced and ultimately produces molecular nitrogen $\left(N_2\right)$ through a series of intermediate gaseous nitrogen oxide products.

It is the process of conversion of nitrate salts to free nitrogen.