Question

6 Identify the diffusion process that takes place in the following.
a) Swelling up of a raisin on keeping in water. b) Spreading of virus on sneezing.
c) Preserving pickles in salt. d) Spreading of smell of cake being baked throughout the house.
e) Aquatic animals using oxygen dissolved in water during respiration.

Answer 1

Answer:

Osmosis occurs in (a) Swelling up of a raisin on keeping in water. (c) Earthworm dying on coming in contact with common salt. (d) Shrinking of grapes kept in thick sugar syrup. (e) Preserving pickles in salt. Diffusion occurs in (b) Spreading of virus on sneezing. (f) Spreading of smell of cake being baked throughout the house. (g) Aquatic animals using oxygen dissolved in water during respiration.

Osmosis occurs in

(a) Swelling up of a raisin on keeping in water.

(c) Earthworm dying on coming in contact with common salt.

(d) Shrinking of grapes kept in thick sugar syrup.

(e) Preserving pickles in salt.

Diffusion occurs in

(b) Spreading of virus on sneezing.

(f) Spreading of smell of cake being baked throughout the house.

(g) Aquatic animals using oxygen dissolved in water during respiration.

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Answer 2

Answer:

a) Osmosis

b) Diffusion

c) Osmosis

d) Diffusion

e) Diffusion