Question
Give a reason why sublimable and non-sublimable substances can be separated easily, but two sublimable substance cannot.
✓
Answer
While separating the mixture sublimable and non-sublimable substances, the sublimable substance turns directly into vapour on heating whereas non-sublimable solid remains behind. Since, if we try to separate the mixture of two sublimable substances, then both the sublimable substances turn into vapour on heating and vapour on cooling give back the pure same solid.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
How does a liquid changes into its gaseous state? Explain
Define Gas.
State the contributions of Dimitri Mendeleev
Name A, B, C, D and E in the following diagram showing changes in the state of matter.
State what is Science and give the basic bifurcation of Science with reasons.
Select homogeneous and heterogeneous mixtures from the following:
The salt solution, petrol, and water, sand, and charcoal, alcohol and water, air dissolved in water, air, seawater, fruit juices, mist, brass.
The salt solution, petrol, and water, sand, and charcoal, alcohol and water, air dissolved in water, air, seawater, fruit juices, mist, brass.
Give a reason why two different rare (inert) gases find application in advertisement signs and fluorescent bulbs.
Differentiate between saturated and unsaturated solutions.
Define a physical change and a chemical change. Give two examples of each.
Name the chemicals which help in increasing food production.