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प्रश्न
Give the chemical name of rust.
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उत्तर
The chemical name of rust is hydrated iron oxide [Fe2OrxH2O]
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संबंधित प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
The trapping of solar heat energy in the earth’s atmosphere is called greenhouse effect.
State what would happen, if the air above the earth contained mainly oxygen and no nitrogen
Air is a mixture of many _______.
Arrange the following statements in correct sequence
- Plants manufacture food by a process called photosynthesis.
- Plants require energy for their growth.
- Plants take in oxygen and release carbon dioxide just as animals.
- Plants take carbon dioxide from the atmosphere, use chlorophyll in the presence of sunlight and prepare food.
- Such oxygen is available to animals and human beings for breathing.
- During this process, oxygen is released by plants.
Why do traffic assistants wear a mask on duty?
The main component of air is oxygen.
Air also contains a small amount of carbon-di-oxide, water vapour, and some other gases like argon,
Tri oxygen molecule is known as ______.
______ is used as a substitute for compressed air in tyres.
Which of the following components of air is present in the largest amount in the atmosphere?
