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प्रश्न
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 __________________.
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उत्तर
To prevent rusting, the underside of the ships is coated with red lead oxide paint.
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संबंधित प्रश्न
Define the term acid rain.
A metal highly resistant to rusting.
State two differences between:
Rusting and burning.
What happens when Iron burns in oxygen ? Also give the balanced chemical equation for the reaction.
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 -
carbon dioxide in air using a test tube with outlets containing lime water.
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.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Draw a neat labelled diagram for the method used in the above preparation.
In Rockets, along with fuel, oxygen is also carried for combustion – why?
