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Which is not a carbonate ore?...

Which is not a carbonate ore?

A

Siderite

B

Azurite

C

Calamine

D

Pyrolusite

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BRILLIANT PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -LEVEL - II
  1. Which of the following statements are true? i) Elements which are le...

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  2. Which is not a carbonate ore?

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  3. Gravity separation or Levigation is most commonly used ore concentrati...

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  4. A mixture of chromite and cassiterite can be successfully separated by...

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  5. Which of the following is false?

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  6. In the leaching of impure bauxite, precipitation of aluminium hydroxid...

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  7. Which of the following statements are wrong? i) Calcination is mainl...

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  8. Roasting and calcination are usually carried out in,

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  9. Which of the following statements is wrong?

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  10. Select the correct statement:

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  11. Which of the following statements about Ellingham diagram are true? ...

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  12. The materials which are added along with the calcinated iron ore into ...

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  13. Which of the following statements is false?

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  14. From copper pyrite, copper is extracted in two stages. In the reverber...

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  15. During the extraction copper by bessemersiation, bessemer converter is...

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  16. In the extraction of zinc, during roasting the temperature is kept abo...

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  17. In thermite reduction Al is chosen as reducing agent because,

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  18. In thermite reduction, ignition mixture consists of

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  19. In hydrometallurgy, sometimes a flux is added,

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  20. In the proces of extraction of gold, Roasted ore + CN^(-) + H(2)O ov...

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