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Which one of the following reacts with A...

Which one of the following reacts with Aluminium is used to join railway tracks or cracked machine parts ?

A

Iron oxide

B

Iron (III) oxide

C

Iron (III) oxide

D

Iron (IV) oxide

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BEYOND PUBLICATION-PRINCIPLES OF METALLURGY-EXERCISE
  1. What is an ore? On what basis a mineral is chosen as an ore?

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  2. Write the names of any two ores of iron?

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  3. Which one of the following reacts with Aluminium is used to join railw...

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  4. Pyrolousite is an ore of

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  5. Which of the following is the outlet through which fuel gases go out ...

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  6. Which of the following metals are moderately reactive ?

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  7. Which of the following is the formula of calcium silicate ?

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  8. Which of the following process occurs in the presence of oxygen or air...

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  9. Generally which furnace is used for roasting ?

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  10. The process of obtaining the pure metal from the impure metal is calle...

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  11. Carnallite is an ore of

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  12. Which of the following process occurs in the absence of air ?

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  13. Which of the following one, we need to make gold hard ?

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  14. Which of the following is an example of corrosion ?

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  15. Which of the following is most common metal in the Earth's crust ?

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  16. Which of the following are the ores of magnesium (Mg) ?

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  17. The reducing agent in thermite process is?

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  18. Magnetic is an ore of

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  19. Which of the following is added to the ore to remove the gangue from i...

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  20. Which of the following means, simply getting rid of as much of the unw...

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