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प्रश्न
Give the chemical name of rust.
एका वाक्यात उत्तर
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उत्तर
The chemical name of rust is hydrated iron oxide [Fe2OrxH2O]
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संबंधित प्रश्न
Briefly state the importance of Oxygen.
Complete and balance the following equation
CaO + H2O →
Name three different appliances where air is utilized.
What is the source of oxygen gas in air?
Why is air considered as a mixture?
Classify the following.
( Dog, Cat, coconut tree, monkey, brinjal plant, papaya plant)
| Things which give out oxygen | Things which give out carbon dioxide |
Why does a lump of cotton wool shrink in water?
The air in coastal areas have more oxygen.
Nitrogen gas is so cold that moisture in the air condenses on it, creating a dense fog.
Assertion: Carbon dioxide occurs as carbonates in nature.
Reason: Carbon dioxide can exist as a liquid at atmospheric pressure.
