Question

During an experiment, Reena places a few raisins
in a beaker containing pure water. After some
time, she observes that the raisins have become
swollen. She then places some of the swollen
raisins in a beaker containing a highly
concentrated salt solution. She observes the
beaker for changes after an hour.
What happens to the raisins when they are first
placed in purewater and then in
theconcentrated salt solution?
A
They shrink and further shrink
respectively
B
They swell and further swell
respectively
C They swell and shrink respectively.
D They shrink and swell respectively.​

Answer 1

Answer:

c) swell and shrink......

Explanation:

When raisins are soaked in water, they swell. All this is due to the process of osmosis. The water molecules pass the cell membrane of the raisins and the raisins thus get swollen.

If these raisins are placed in a concentrated salt solution, they will shrink due to osmosis

Answer 2

Answer:

c

Explanation:

bcoz of osmosis the raisins swells up in the first case as the surrounding concentration of water is more and raisins shrinks in the second case as the surrounding concentration of water is less.