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प्रश्न
Fill in the blank
The reddish-brown powder on the surface of iron nails exposed to air and moisture is called _____.
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उत्तर
The reddish-brown powder on the surface of iron nails exposed to air and moisture is called rust.
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संबंधित प्रश्न
Statement given below is incorrect. Write the correct statement :
During thunder and lightning, nitrogen and oxygen combine to form nitrogen dioxide gas.
Write ‘True’ or ‘False’ in front of following statement.
The trapping of solar heat energy in the earth’s atmosphere is called greenhouse effect.
Write ‘True’ or ‘False’ in front of following statement.
The catalyst used in laboratory preparation of oxygen gas from hydrogen peroxide gas is magnesium oxide
What are the two necessary conditions for rusting of iron?
State what would happen, if the air above the earth contained mainly oxygen and no nitrogen
Give word equation for the following conversion:
Nitrogen dioxide to nitric acid
Explain why mountaineers carry oxygen cylinders with them?
How will you prove that air supports burning?
Nitrogen gas is so cold that moisture in the air condenses on it, creating a dense fog.
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere.
Carbon dioxide
