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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
Suggest five measures to prevent air pollution.
Complete and balance the following chemical equation.
\[\ce{HgO ->[heat]}\] ______ + _______
Tick (√) the most appropriate answer.
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Tick (√) the most appropriate answer.
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What are the two necessary conditions for rusting of iron?
Name the following:
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Why do traffic assistants wear a mask on duty?
Write about the reaction of nitrogen with non metals.
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State whether the following statement is true or false. If false, correct them.
Plants produce oxygen during the process of making their own food.
