Density of nitrogen gas prepared from air is slightly greater than that of nitrogen prepared by chemical reaction from a compound of nitrogen due to the presence of
A.
argon
B.
carbon dioxide
C.
some $${N_3}$$ molecules analogous to $${O_3}.$$
D.
greater amount of $${N_2}$$ molecules derived from $$N{\text{ - }}15$$ isotope.
Answer :
argon
Solution :
Air contains about 1% inert gases, mainly $$Ar.\left( {{\text{At}}{\text{.}}wt\,\,40} \right)$$ The atomic $$wt.$$ of $${N_2}$$ is 28.
Releted MCQ Question on Inorganic Chemistry >> P - Block Elements
Releted Question 1
The reddish brown coloured gas formed when nitric oxide is oxidised by air is