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What are the main components of inv...

What are the main components of invar ?

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**Step-by-Step Text Solution:** 1. **Definition of Invar**: Invar is an alloy that is primarily composed of iron and nickel. It is known for its low coefficient of thermal expansion, which makes it useful in precision instruments. 2. **Main Components**: The main components of Invar are: - **Iron (Fe)**: The predominant metal in Invar, making up about 64% of the alloy. - **Nickel (Ni)**: The second main component, constituting about 36% of the alloy. ...
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PRADEEP-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -ADDITIONAL QUESTIONS (Very Short Answer Questions)
  1. Indicate the temperature at which carbon can be used as a reducing age...

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  2. What is the role of coke in the extraction of iron from its ...

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  3. Name the reducing agent to obtain iron from Fe2 O 3 at hi...

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  4. Write a non - exothermic reaction takind place in the blast fur...

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  5. Which form of the iron is the purest form of commercial iron ?

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  6. What is the role of silica in the extraction of copper?

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  7. What is the composition of 'Copper matte'?

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  8. How is copper extracted from low grade copper ores?

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  9. Which reducing agent is employed to get copper from the leached low-gr...

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  10. Write the overall reaction taking place in the process used for ...

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  11. How are tin and lead purified ?

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  12. Mention two important substances present in the 'anode mud' obtaine...

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  13. What is the principle of zone refining ?

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  14. Give an example of zone refining of metals.

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  15. Write the anem of the method used for refining of the followi...

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  16. Write the principle of the method used for refining of germa...

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  17. Name the method used for refining of (i) copper metal (ii) ...

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  18. What is Van Arkel method of obtaining ultrapure metals ?

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  19. Define amalgamation. Discuss its use in the purification of gold...

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  20. What are the main components of invar ?

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