(a) When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance quickly spreads in the entire room. Name the process involved in this.(b) A girl is cooking some food in the kitchen. The smell of food being cooked soon reaches her brother's room. Explain how the smell could have reached her brother's room.

Academic Chemistry NCERT Class 9

(a) Diffusion is the process involved when an incense stick (agarbatti) is lighted in one corner of a room, its fragrance quickly spreads in the entire room.

(b) The smell of food being cooked reaches the other room by the diffusion of gases that are released into the air during the cooking of food.

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Updated on: 10-Oct-2022

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