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Q. Nitrites converted to nitrates by

CMC MedicalCMC Medical 2013

Solution:

Nitrifying bacteria: Nitrosomonas and Nitrococcus obtain energy by oxidising ammonia to nitrite. $ NH_{4}^{+}+2{{O}_{2}}\xrightarrow{{}}NO_{2}^{-}+2{{H}_{2}}O+\text{energy} $ Notrocystis and Nitrobacter oxidise nitrites to nitrates $ 2N{{O}_{2}}+{{O}_{2}}\xrightarrow{{}}2NO_{3}^{-}+\text{energy} $