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प्रश्न
A metal highly resistant to rusting.
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उत्तर
Tin.
APPEARS IN
संबंधित प्रश्न
A mixture of oxygen and carbon dioxide used for artificial respiration.
What is rust ?
State at least two ways of prevent rusting.
State and explain two ways by which air gets polluted in nature.
Tick (√ ) the most appropriate answer.
Galvanising is the process of coating iron with a layer of molten :
Describe simple experiments to show the presence of -
oxygen and nitrogen component in air using a bell jar
Describe simple experiments to show the presence of -
carbon dioxide in air using a test tube with outlets containing lime water.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the word equation for the reaction involving the above preparation of oxygen.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the method of collection of the oxygen gas giving reasons.
Match the following
| 1. | Burning of meteors | a. | Exosphere |
| 2. | Weather change | b. | Stratosphere |
| 3. | Lowest temperature | c. | Mesosphere |
| 4. | Ozone layer | d. | Troposphere |
