Advertisements
Advertisements
Question
Describe simple experiments to show the presence of -
carbon dioxide in air using a test tube with outlets containing lime water.
Advertisements
Solution
Carbon dioxide in air:
Apparatus- A test tube containing lime water with two outlets ‘A’ and ‘B’.
Procedure -Air is sucked slowly from the outlet ‘B’ as shown above.
Observation - The lime water in the test tube turns milky.
Conclusion - Air which is sucked in from end ‘A’, passes through the lime water and contains carbon dioxide which turns lime water milky [This is a test for carbon dioxide gas].
APPEARS IN
RELATED QUESTIONS
A metal highly resistant to rusting.
Fill in the blanks :
Oxides of sulphur and nitrogen combine with rain water to form ___________ and _________ which cause ____________.
Write ‘True’ or ‘False’ in front of following statement.
Nitrogen is a gaseous non-metal essential for respiration.
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
To prevent rusting, the underside of the ships is coated with __________________.
What is rusting?
State how nitrogen is utilised by plants for their growth. Give a reason why nitrogen is used in flushing food packages.
Describe simple experiments to show the presence of -
oxygen and nitrogen component in air using a bell jar
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Name the catalyst used in the preparation and state it’s function.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the method of collection of the oxygen gas giving reasons.
Give reason for the following:
Acid rain has caused damage to heritage structures such as the Taj Mahal.
