Question

Ques 21)
Raisins are dehydrated grapes Raisins swell up when
soaked up in water, this is due to osmosis, osmosis is a type of diffusion in which
the molecules of water from a solution of higher concentration move into the
solution of lower concentration through a semipermeable membrane along a
concentration gradient. Osmosis is of two types - endosmosis and exosmosis
1. what will happen if raisins are placed in sugar solution instead of water?
a) Raisins swell up
b) Raisins shrink
C) Raisins take in sugar and taste sweeter
D) Raisins split
2. What is the solution called when its concentration is the same as concentration
inside the cell?
a) hypertonic solution
b) isotonic solution
c) hypotonic solution
d) dilute solution
Which of the following statements is incorrect about osmosis?
a) it occurs only in plants
b) it occurs through a semi permeable membrane
C) the water molecules move from a region of higher concentration to a region
of lower concentration​

Answer 1

Answer:

1. b) Raisins shrink
2. b) isotonic solution
3. c) the water molecules move from a region of higher concentration to a regionof lower concentration

Explanation:

Can you please mark mine as brainlest please.

Answer 2

1. b) Raisins shrink

When raisins (dehydrated graphs) placed in sugar solution instead of water it will shrink as we know that sugar solution is hypertonic solutions and raisins will lose water by osmosis.

2. b) Isotonic solution

The cell will stay the same size , no change.

3. a) it occurs only in plants.

Other options are correct about osmosis.

@A. Pal_yt C. B. S. E. Chemistry Class 9