Question
How will you show that air is dissolved in water?
✓
Answer
Take some water in a beaker. Heat it slowly. Look carefully at the inner surface of the vessel. Place it on a tripod stand. Tiny bubbles will be seen. When you heat water, the air dissolved in it escapes and forms bubbles. Hence, we conclude that these bubbles come from the air dissolved in water.
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
would the buld glow in the circuit shown in figure given below?
Is it possible to separate sugar mixed with wheat flour? If yes, how will youdo it?
How does a fish swim?
Write two functions of rib cage and backbone each.
What do you mean by an irreversible change? Give two examples.
Explain giving scientific reasons: It is advisable to breathe through our nose.
Explain giving scientific reasons: The showcases kept in shops have glass doors.
With the help of an example show that plants respond to stimuli.
Classify the following materials into soluble in water and insoluble in water: Sugar, glass, iron powder, alum, saltpetre, sulphur, washing soda, iodine, lemon salt, oil, honey, plastic.
What is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.