Reaction carried out by N2 fixing microbes include

\\(a)\: 2NH_3+3O_2\rightarrow 2NO_2+2H+2H_2O\\ (b)\: 2NO_{2}^{-}+O_2\rightarrow2 N^-O_3

Which of the following statements about these equations is not true?
(a) step (i) is carried out by Nitrosomonas or Nitrococcus
(b) step (ii) is carried out by Nitrobacter
(c) both steps (i) and (ii) can be called nitrification
(d) bacteria carrying out these steps are usually photoautotrophs

Answers (1)

Ans. The answer is the option (d) bacteria carrying out these steps are usually photoautotrophs
Explanation: Bacteria carrying out nitrogen fixation are chemoautotrophs and not photoautotrophs.

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