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Chemistry CBSE Live product
Class 9
Matter in our surroundings
PT1 Revision - Matter in our surroundings
2.
Diffusion in gases
Question:
1
m.
Choose the correct answer:
What does it indicate when the fragrance from a perfume bottle opened in one corner of a room is detected in the opposite corner after some time?
Particles of matter are constantly moving
the perfume is strong
The room has fan which circulates the perfume
None of these
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