Question:
Nitrification is carried out sequentially by
Nitrification is carried out sequentially by
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Nitrification:
\[
\boxed{
NH_4^+
\rightarrow
NO_2^-
\rightarrow
NO_3^-
}
\]
\[
\boxed{
\textit{Nitrosomonas}
\rightarrow
\textit{Nitrobacter}
}
\]
Updated On: Jul 18, 2026
- Nitrosomonas and Nitrobacter
- Bacillus and Clostridium
- Methanosarcina and Methanobacterium
- Pseudomonas only
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The Correct Option is A
Solution and Explanation
Nitrification occurs in two sequential steps:
\[
NH_4^+
\xrightarrow{\textit{Nitrosomonas}}
NO_2^-
\]
followed by
\[
NO_2^-
\xrightarrow{\textit{Nitrobacter}}
NO_3^-.
\]
Hence,
\[
\boxed{\textit{Nitrosomonas} \text{ and } \textit{Nitrobacter}}
\]
carry out nitrification sequentially.
Therefore,
\[
\boxed{(A)}
\]
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