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Question
Reaction carried out by N2 fixing microbes include
- \[\ce{2NH3 + 3O2 -> 2NO^{-}2 + 2H^{+} + 2H2O (i)}\]
- \[\ce{2NO^{-}2 + O2 -> 2NO^{-}3 (ii)}\]
Which of the following statements about these equations is not true
Options
Step (i) is carried out by Nitrosomonas or Nitrococcus
Step (ii) is carried out by Nitrobacter
Both steps (i) and (ii) can be called nitrification
Bacteria carrying out these steps are usually photoautotrophs
Solution
Bacteria carrying out these steps are usually photoautotrophs
Explanation:
Bacteria that assist in nitrogen fixation are heterotrophs, and that is why they enter into the symbiotic association.
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