A) 22.4
B) 11.2
C) 5.7
D) 2.0
Correct Answer: D
Solution :
The density of gas\[=\frac{molecular\,\,wt.\,\,of\,\,metal}{volume}\]\[=\frac{45}{22.4}\]\[=2gm\,\,litr{{e}^{-1}}\]
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