Question
Set up an experiment to demonstrate osmosis.
✓
Answer
Put dried raisins and apricots in pure water and leave them for some time. Then place them into a concentrated Solution of sugar or salt. Each one of them gains water and swells when placed in pure water due to endosmosis. When such swollen raisins/ apricots are placed in the concentrated Solution, each of them loses, water, and consequently shrinks again (due to exosmosis).
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Give reasons for:
We get a crunchy and granular feeling, when we chew pear fruit.
We get a crunchy and granular feeling, when we chew pear fruit.
Define gravitational constant. What are the units of gravitational constant?
Calculate the molecular masses of the following:
- Hydrogen, H2
- Oxygen, O2
- Chlorine, Cl2
- Ammonia, NH3
- Carbon dioxide, CO2
What is air pollution? How is it caused? Give its effects.
What is the difference between the density and relative density of a substance?
Show by an experiment that by increasing the temperature, the substance can be changed into liquid and then into vapours.
Explain various effects of weeds on crop plants.
- Identify the animal tissue represented alongside.
- Label the parts of 1 to 4.
- Mention the function of this tissue.
A body vibrating with a time-period of $\frac{1}{256}\text{s}$ produces a sound wave which travels in air with a velocity of 350m/s. Calculate the wavelength.
→List three groups of plants. Which plants are referred to as vascular plants? Out of these which group is further classified on the basis of number of cotyledon? State its two characteristics.