Some Basic Concepts Of Chemistry Question 104

Question: $ 4.4\ g $ of an unknown gas occupies $ 2.24L $ of volume at standard temperature and pressure. The gas may be

Options:

A) Carbon dioxide

B) Carbon monoxide

C) Oxygen

D) Sulphur dioxide

Show Answer

Answer:

Correct Answer: A

Solution:

[a] $ \because $ 2.24L of gas has mass = 4.4gm

$ \therefore $ 22.4L of gas has mass $ =\frac{4.4}{2.24}\times 22.4=44 $ So given gas is $ CO _2 $ because $ CO _2 $ has molecular mass=44.



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