Question

Denitrification is carried out by:

Options

• Nitrosomonas

• Pseudomonas

• Nitrobacter

• Nitrococcus

Answer 1

Pseudomonas

Explanation:

Denitrification is the conversion of nitrate \[\ce{(NO^{-}3)}\] or nitrite \[\ce{(NO^{-}2)}\] in soil anaerobic microorganisms to the gases nitrous oxide (N₂O) and molecular nitrogen (N₂), which are then lost in the atmosphere. Pseudomonas and Thiobacillus bacteria are involved.