What is nitrification ? Name two nitrifying bacteria of soil

Nitrification refers to the phenomenon of ^ conversion of ammonia into NO2, (nitrite) and then
into N03 (nitrates).
Two nitrifying bacteria :
(a) Nitrosomonas : It converts ammonia (NH3) into
nitrites (N02_).
2NH3 + 302 ------> 2H + 2HzO + 2N02
Nitrite
(d) Nitrobacter: It converts nitrites into nitrates.
2N02- + 02 ------ > 2NOS