Question

The first stable product of fixation of atmospheric nitrogen in leguminous plants is :

• A. $N{O}_2^{-}$
• B. $\text{Ammonia}$
• C. $N{O}_3^{-}$
• D. $\text{Gluatamate}$

Answer 1

The correct option is B $\text{Ammonia}$

Biological nitrogen fixation is the process that helps nitrogen fixation in plants. This process is mediated in nature only by nitrogen-fixing bacteria. Root nodules of leguminous plants harbour nitrogen-fixing bacterium, which has nitrogenase enzyme.
Ammonia is the first stable compound produced in the fixation of atmospheric nitrogen.
So, the correct answer is 'ammonia'.