search
arrow-left Previous
Next arrow-right
Q: The air is a ………….?
  • A. Pure mixture
  • B. Blends only
  • C. Mixture of elements only
  • D. Mixture of both elements and compounds
Correct Answer: Option D - Air is a mixture of gases (both elements and compounds) contained in the Earth's atmosphere. The gases found in the atmosphere are as follows: Nitrogen (78.084%), Oxygen (20.946%), Argon (0.934%), Neon (0.0018%), Helium (0.00524%) Methane (0.002%) etc.
D. Air is a mixture of gases (both elements and compounds) contained in the Earth's atmosphere. The gases found in the atmosphere are as follows: Nitrogen (78.084%), Oxygen (20.946%), Argon (0.934%), Neon (0.0018%), Helium (0.00524%) Methane (0.002%) etc.

Explanations:

Air is a mixture of gases (both elements and compounds) contained in the Earth's atmosphere. The gases found in the atmosphere are as follows: Nitrogen (78.084%), Oxygen (20.946%), Argon (0.934%), Neon (0.0018%), Helium (0.00524%) Methane (0.002%) etc.