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USHA PUBLICATION-GENERL PRINCIPAL AND PROCESS OF ISOLATION OF ELEMENTS-EXERCISE
- Which of the following is not an ore of zinc ?
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- A free state of a metal is called as its state.
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- What is gangue ?
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- In electrorefining process the impure metal is made as .
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- In Goldschmidt thermite process the reducing agent is .
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- Refining of Aluminium metal can be carried out by process.
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- What is flux ?
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- What is slag ?
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- Calcium silicate is a .
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- Flux + gangue = .
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- During extraction of Al from bauxite is added to lower the melting po...
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- Write the name and composition of two ores of copper.
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- What is the function of limestone the extraction of iron? Give equatio...
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- Sulphide ores are generally concentrated by
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- What is anode mud ?
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- Give an example of a metal which is obtained by autoreduction process.
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- The electropositive metals can be obtained by process.
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- Nickel can be purified by process.
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- What is smelting ?
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- Write chemical reactions taking place in the extraction of zinc from z...
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