Question

In the absence of catalyst, ammonia is burnt in an atmosphere of oxygen and produces:
A. nitrogen gas and water
B. nitric oxide
C. nitrogen dioxide
D. nitric acid

Answer 1

To know the product of the given reaction in the question, we should discuss the reaction of ammonia when it burnt in an atmosphere of oxygen and produces some gases. We will also discuss more about the ammonia reactions.

Complete step by step solution:
The combustion of ammonia proceeds to yield nitrogen gas and water. With the use of catalyst and under correct conditions of temperature, ammonia reacts with oxygen to produce nitric oxide which is oxidized to nitrogen dioxide and is used in the synthesis of nitric acid.
The reaction is as follows:-
$4N{H_3}(g) + 3{O_2}(g) \to 2{N_2}(g) + 6{H_2}O$
Ammonia gas is burnt in an atmosphere of oxygen in the absence of a catalyst. It burns with yellowish-green flame producing water vapour and nitrogen.
Ammonia is among the most delivered synthetic compounds on the planet. The compound is promptly orchestrated and serves an assortment of employments. You can contemplate alkali and its responses by finding out about the compound, or exploring different avenues regarding it in the lab, contingent upon your experience in science and admittance to hardware. You will find that smelling salts can respond from various perspectives, and surprisingly the blend of the compound requires planning.
Hence, the correct option is A. nitrogen gas and water.

Note:
Ammonia has many uses, and some of the more specific reactions are named. The synthesis of nitric acid is referred to as the Ostwald process, and involves combining ammonia with excess oxygen under conditions that yield nitrogen dioxide. The $N{O_2}$ is then bubbled through water, which absorbs the gas and converts it to nitric acid.