RRB Group D Model Paper 2 with solutions

Question : 7 of 100

Marks: +1, -0

In soil, nitrites are converted into nitrates by ________.

Nitrobacter
Azotobacter
Nitrosomonas
Pseudomonas

Solution:

(1) In soil, nitrites are converted into nitrate by bacteria of the genus Nitrobacter. This process is called Nitrification and it is a part of the nitrogen cycle in soil. Nitrate is a polyatomic ion with the molecular formula N

O_3

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