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Low boiling metals like mercury and zinc...

Low boiling metals like mercury and zinc are refined by

A

Distillation

B

Liquation

C

Poling

D

Electrolytic reduction

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Identify the correct statement from the following : i. In the extraction of Ag and Au, zinc is used as reducing agent. ii. Impure zinc can be refined by distillation method. iii. Malachite is an ore of nickel.

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How do the metals like zinc, iron are extracted from their ores ?

BEYOND PUBLICATION-PRINCIPLES OF METALLURGY-EXERCISE
  1. During melting of haematite in a blast furnace………….is the flux added.

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  2. Low-melting metal like tin can be purified by this method

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  3. Low boiling metals like mercury and zinc are refined by

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  4. Which of the following are Sulphides ? Zinc Blende Rock Salt Cinn...

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  5. Which of the following are not ionic compounds ? KCl HCl CCl4 N...

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  6. Aluminium is used for making cooking utensils. Which of the following ...

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  7. Which of the following methods is suitable for preventing an iron arti...

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  8. The formula of carnalllite is

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  9. --------- group are called chalcogenes.

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  10. Which combination is wrong for the extraction of sodium metal from fus...

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  11. Blister copper is a

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  12. Which of the following is wrong about poling ?

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  13. When an Iron object is painted, the process of corrosion is reduced du...

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  14. More electropositive metals (more active metals ) are not prepared by ...

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  15. Which of the following is true about preparation of Iron by smelting p...

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  16. Two test tubes. 'A' and 'B' contains iron nails. In 'A' test tube iron...

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  17. Buried underground pipes are coupled with small magnesium foils. This ...

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  18. During the electrolysis of sodium chloride ----------- gas liberates a...

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  19. is used to convert sulphide ore into oxide ore.

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  20. The ore of mercury is

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