Download App

Matter in Our Surroundings — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings2 Marks
Question
What is sublimation? Name two substances (other than ammonium chloride) which undergo sublimation.
✓

Answer

The changing of a solid directly into vapours on heating and of vapours into solid on cooling is known as sublimation. The common substances which undergo sublimation are Camphor and Naphthalene.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Que-Ans (Each of 2 Mark )" from Matter in Our Surroundings→Matter in Our Surroundings — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Explain the direction of air movement during the day and night in coastal areas.

→
Define ‘molecular mass’ of a substance.
→
When is a body said to have uniform velocity?
→
How do prokaryotic cells reproduce? Name two prokaryotes.
→

Represent graphically by two separate diagrams:

Two sound waves having different amplitudes and also different wavelengths.

→
How does an electron differ from a neutron?
→
What happens to the gravitational force between two objects when the distance between them is (i) doubled (ii) halved?
→
Can we separate alcohol dissolved in water by using a separating funnel? If yes, then describe the procedure. If not, explain.
→
Why is endocytosis found in animals only?
→

What is function of tendon?

→