Advertisements
Advertisements
प्रश्न
You are given a test tube with two outlets and a bottle of lime water. Using same, how would you demonstrate experimentally the presence of carbon dioxide in air.
Advertisements
उत्तर
Procedure:
- Take lime water in a test tube with two outlets ‘A’ and ‘B’ as shown above.
- Air is sucked slowly through the outlet ‘B’.
- Air moves in through end ‘A’ and passes through the lime water
Observation:
The line water in the test tube turns milky.
Conclusion:
Air which is sucked in from and ‘A’ contains carbon dioxide which turns the lime water milky. Hence, air contains – carbon dioxide.
संबंधित प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
The area where a lot of fuel burns has more percentage of carbon dioxide.
Briefly state the importance of Water vapour.
Write ‘true’ or ‘false for the following;
The composition of air was discovered by Lavoisier.
Explain the importance of nitrogen of the air for plant growth.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Photosynthesis is a process by which green plants prepare their own food in the presence of sunlight and chlorophyll.
Give word equation for the following conversion:
Nitric acid to soluble nitrates in the soil
Air is a mixture of many _______.
_____ gas turns lime water milky.
Which gas in the atmosphere is essential for respiration?
Why does a lump of cotton wool shrink in water?
