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Which one of the following ores is best ...

Which one of the following ores is best concentrated by froth flotation method:

A

Galena

B

Cassiterite

C

Magnetite

D

Malachite

Text Solution

Verified by Experts

The correct Answer is:
A
Only galena (PbS) is a sulphide ore. Cassiterite is `SnO_(2)`, magnetite is `Fe_(3)O_(4)` and malachite is `Cu(OH)_(2).CuCO_(3)`. Froth-floatation process is used to concentrate sulphide ores.
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MTG IIT JEE FOUNDATION-METALS AND NON METALS -Exercise (Multiple Choice Questions ) Level-2
  1. Which one of the following ores is best concentrated by froth flotatio...

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  2. Which of the following statements is correct regrading the slag obtain...

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  3. When the sample of copper with zinc impurityn is to be purified by ele...

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  4. Which is not the correct statement ?

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  5. An alloy which does not contain copper is

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  6. A student puts one big iron nail each in four test tubes containing so...

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  7. When iron fillings are heated in a steam of dry hydrogen chloride the ...

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  8. An alloy of zinc and copper is dissolved in dilute hydrochloric acid. ...

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  9. Gravity separation method is based upon

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  10. The process of removing lighter gangue particles by washing in a curre...

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  11. Which ore contains both iron and copper?

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  12. Hydrogen gas is not widely used as a reducing agent because

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  13. A large volume of copper(II) sulphate solution is left in an iron cont...

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  14. Metals are refined by using different methods. Which of the following ...

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  15. Identify the metal that occurs in the native state in nature.

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  16. Four metals P, Q, R, S are tested with water, steam and dilute hydroch...

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  17. An experimental set up is shown in the figure. Identify the metal X an...

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  18. An element X (atomic number 12) reacts with another element Y (atomic ...

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  19. There are four metals K, L M and N. Identify them by using the hints g...

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  20. Which one of the following metal oxides show s both acidic and basic c...

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