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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.
What happens when Sodium burns in oxygen ? Also give the balanced chemical equation for the reaction.
State two most important conditions for rusting.
Oxygen of the air is utilised for ‘combustiop’ and for ‘respiration’. Compare the two with a suitable examples.
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.
Distinguish between:
Combustion & Rusting with suitable word equations only?
Give reason for the following:
Acid rain has caused damage to heritage structures such as the Taj Mahal.
Name the following:
The gas required for both combustion and rusting.
Match the following
| 1. | Burning of meteors | a. | Exosphere |
| 2. | Weather change | b. | Stratosphere |
| 3. | Lowest temperature | c. | Mesosphere |
| 4. | Ozone layer | d. | Troposphere |
