Oxides of nitrogen can be formed from Select one: a. air at high temperature b. gasoline and nitrogen c. oxygen and nitrogen when compressed d. oxygen and nitrogen at atmospheric pressure Clear my choice

Answer is

a. Air at high temperature

Explanation:

The oxides of nitrogen are formed when the combustion / lightning / spark is carried out in the presence of air. High temperature is achieved during combustion which converts the nitrogen into NOx.

The answer is a because when very high temperature is achieved in air (mainly due to combustion process) the nitrogen reacts with oxygen to form nitrogen oxides.

b is not the answer because gasoline does not react with the nitrogen directly.

c is not the answer because air can be compressed to high pressures without any reaction between nitrogen and oxygen.

d is not the answer because air we breath in is at atmospheric pressure and both gases in air doe not react with each other.

what's the

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements