Which statement correctly differentiates air and smoke?
Answer and explanation
Correct answer: Air is a homogeneous solution of gases; smoke is dispersion of solid particles in gas
Clean air is treated as a homogeneous mixture of gases, with gases uniformly distributed. Smoke contains tiny solid particles, such as soot, dispersed through a gas; it is therefore a dispersion rather than an ordinary gas-gas true solution. Smoke is not necessarily pure and does not contain only liquid particles.
Frequently asked questions
What is the correct answer to this question?
Air is a homogeneous solution of gases; smoke is dispersion of solid particles in gas
Why is this the correct answer?
Clean air is treated as a homogeneous mixture of gases, with gases uniformly distributed. Smoke contains tiny solid particles, such as soot, dispersed through a gas; it is therefore a dispersion rather than an ordinary gas-gas true solution. Smoke is not necessarily pure and does not contain only liquid particles.
Which subject and chapter does this question cover?
This is a Class 9 Science question. Chapter: Exploring Mixtures and Their Separation. Topic: Homogeneous and heterogeneous mixtures.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
