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Which is not an ore ?...

Which is not an ore ?

A

Bauxite

B

Malachite

C

Zinc blende

D

Pig iron

Text Solution

Verified by Experts

The correct Answer is:
D
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MBD PUBLICATION-GENERAL PRINCIPLES OF ISOLATION OF ELEMENTS-QUESTION BANK
  1. Which among the following has highest electrical conductivty ?

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  2. Al2O3 formation involves large quantity of heat evolution which makes ...

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  3. Which is not an ore ?

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  4. Which is not an ore :

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  5. Heating of pyrite ores in air to remove sulphur is known as :

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  6. Among the following group of oxides, the group containing oxides that ...

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  7. The electrolytic reduction technique is used in the extraction of :

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  8. Furances are lined with calcium oxide because :

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  9. The process in which ore is heated in air below its melting point is k...

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  10. The metal that is extracted from sea water is :

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  11. Extraction of metal from sulphide ore is made by :

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  12. Which of the following processes involves the roasting process ?

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  13. Corundum is :

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  14. Which metal is sometimes found in native state ?

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  15. Which elements found in human body :

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  16. presence of small impurity usually makes a metal quite hard because th...

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  17. The phenomenon in which white transparent crystal changes into white p...

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  18. Which substance can be used for drying basic gases :

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  19. The cheap and high melting point compound used in furnace lining is :

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  20. Which element occurs freely in nature ?

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