Advertisements
Advertisements
प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
Nitrogen is a gaseous non-metal essential for respiration.
पर्याय
True
False
Advertisements
उत्तर
False:
Oxygen is a gaseous non-metal essential for respiration.
APPEARS IN
संबंधित प्रश्न
A metal highly resistant to rusting.
Fill in the blank by choosing the correct word from the given list.
List: oxygen, carbonic, suIphur dioxide gas, precipitation, helium
____________ gas can cause acid rain.
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 __________________.
Write the balanced chemical equation of the manganese dioxide.
Oxygen of the air is utilised for ‘combustiop’ and for ‘respiration’. Compare the two with a suitable examples.
Describe simple experiments to show the presence of -
oxygen and nitrogen component in air using a bell jar
Describe simple experiments to show the presence of -
water vapour in air using a glass tumbler and ice.
Identify the acidic oxides responsible for acid rain. State how their presence results in formation of acid rain. Give a reason why acid rain damages heritage buildings.
Give the main experimental points only to demonstrate that magnesium.
Name the following:
The gas required for both combustion and rusting.
