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In the froth flotation process for benef...

In the froth flotation process for benefication of ore, the ore particles float because

A

They are light

B

Their surface is not easily wetted by water

C

They bear electrostatic charge

D

They are insoluble

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The correct Answer is:
B
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CENGAGE CHEMISTRY-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exercise (Single Correcttype)
  1. Which of the following processes involve the roasting process ?

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  2. Alklali metals do not exist in free state in nature because these are

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  3. In the froth flotation process for benefication of ore, the ore partic...

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  4. Salt which is (are) least likely to find in minerals

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  5. Which of the following benefication processes is used for the mineral ...

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  6. In the aluminothermite process, aluminium is

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  7. Magnetic separation is used for increasing concentration of the follow...

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  8. Which of the following srtatement above the advantage of masting of su...

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

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  10. During the process of electroytic refining of copper some metals prese...

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  11. On heating a mixture of Cu(2)O and Cu(2)S, we get :

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  12. Sulphide ore of metal are usually concentrated by froth flotation proc...

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  13. Heating of ore in presence of air to remove sulphure impurities is cal...

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  14. The method of zone relining of metal is based on the principle of AIFM...

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  15. Which of the following function is of no significance for roasting su...

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  16. Complex formation for cyanide method is used for the extraction of

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  17. The least stable oxide at room temperature is

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  18. High purity copper metal is obtained by

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  19. Corumdum is

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  20. Whch ore can be best concentrated by froth flotation process ?

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