P Block Elements Question 567
Question: 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
Options:
A) argon
B) carbon dioxide
C) some $ N_3 $ molecules analogous to $ O_3 $ .
D) greater amount of $ N_2 $ molecules derived from N-15 isotope.
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Answer:
Correct Answer: A
Solution:
Air contains about 1% inert gases, mainly Ar. (At.wt 40) The atomic wt. of $ N_2 $ is 28.
BETA
