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Chemistry CBSE Live product
Class 8 (2026-27)
Particulate Nature of Matter
How particles move in different States of Matter?
7.
Diffusion and compressibility
Question:
3
m.
Help
Vinith
to
select
the correct answers:
Dissolving copper sulphate crystals in water
1.
What is diffusion?
Movement of particles in an uneven motion
Movement of particles from a region of higher concentration to a region of lower concentration
Movement of particles from a region of lower concentration to a region of higher concentration
Escaping of particles from a region of lower concentration to a region of higher concentration
2.
Why does diffusion not occur in the same way when sand is added to water?
Sand particles are held together loosely and water particles cannot pull them apart
Sand particles are held together strongly and water particles cannot pull them apart
Sand particles are free to move and water particles cannot pull them apart
Sand particles are held together strongly and water can dissolve them easily
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