Question

Amino nitrogen and heterocyclic nitrogen can be degraded by biological method by first converting it into ______________

(a) Ammonia

(b) Nitrate

(c) Sulphate

(d) Carbon dioxide

This question was addressed to me by my school teacher while I was bunking the class.

This interesting question is from Biological Treatment of Waste Water in chapter Biological Treatment of Waste Water of Environmental Biotechnology

Answer 1

Correct choice is (a) Ammonia

The best explanation: Amino nitrogen and heterocyclic nitrogen can be degraded by biological method by first converting it into ammonia by aerobic and anaerobic processes thereby making the removal easier, conversion into nitrate has to be again converted into ammonia, and amino nitrogen doesn’t have a sulphate group and it is definitely not converted into carbon dioxide.