The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about ____________ percent?
2
Yield of urea can be increased with excess ammonia and higher pressure & temperature, but because of ____________ this is normally not done?
3
Which of the following is not a measure component necessarily to be present in fertilisers ?
These are just sample questions. The actual quiz contains 10 questions.
