Question

Please give conclusion for the following activity :. Aim :

Observation of material in different

solutions

Material

: 1. Two beakers 2. Tap water

3. Sugar 4. Dry grapes or kishmish

Procedure:

Take 100 ml of water in a

beaker.

Keep dry raisin (kishmish) in it.

Fig-1 Kishmish kept in tap water

Leave it for one hour. Observe what has

happened. Take it out and compare it with

the dry raisin. Is there any change in the

size of kishmish. (You may try the same

activity with slightly dried carrots and other

such vegetables) Did you ever observe that

your mother dipped wilted vegetables in

water. Can you identify the reason.

Then take 100 ml of saturated solution

of sugar in a beaker, which was already

prepared Keep swollen kishmish of the previous

activity or fresh grape or carrot in it.

Leave it overnight. And observe in the

next morning what happens. please help me fastly .​

Answer 1

When raisins are kept in water, the water from the surrounding diffuses into the raisins and the raisins swell up.

The process of absorption of water by raisins and swelling up is called osmosis.

Osmosis is the movement of solvent molecules from a region of their higher concentration to a region of their lower concentration through a semipermeable membrane.

Hope it helps you!!

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Answer 2

Answer:

It will burst and comes to normal