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BHARATI BHAWAN (ENGLISH)-METALS AND NONMETALS -Long Answer Questions
- Describe two methods for the concentration of ores.
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- Explain the following terms : (a) Metallurgy (b) Flux (c ) Calcinati...
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- Compare and contrast the properties of metals and nonmetals.
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- Explain the method used for the extraction of aluminium from its ore. ...
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- How does aluminium react with the following substances ? (a) water (...
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- Name the chief ore of iron. What are the three raw materials used in t...
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- What is allotropy ? Name any four allotropic modifications of sulphur ...
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- Draw a labelled diagram of Frasch process for mining sulpur. State the...
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