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A bottle filled with previously moistened mustard seeds and water was screw capped tightly and kept in a corner. It blew up suddenly after about half an hour. The phenomenon involved is

1. diffusion
2. imbibition
3. osmosis
4. d.P.D

Correct answer: osmosis

Solution

Osmosis is the movement of water molecules from a region of high concentration to a region of low concentration through a selectively permeable membrane. In this case, the mustard seeds absorb water, causing the bottle to blow up.

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