Home
Class 12
CHEMISTRY
Roasting is carried out to :...

Roasting is carried out to :

A

convert sulphide to oxide and sulphate

B

remove water of hydration

C

melt the ore

D

remove arsenic and sulphur impurities

Text Solution

Verified by Experts

The correct Answer is:
A, B, D
Promotional Banner

Topper's Solved these Questions

  • METTALURGY

    NARAYNA|Exercise Assertion and Reasoning Questions|2 Videos

  • METTALURGY

    NARAYNA|Exercise True of False|2 Videos

  • METTALURGY

    NARAYNA|Exercise Single Answer Questions|120 Videos

  • METALLURGY

    NARAYNA|Exercise STATEMENT TYPE QUESTOINS|20 Videos

  • NUCLEAR CHEMISTRY

    NARAYNA|Exercise INTEGER|28 Videos

Similar Questions

Explore conceptually related problems

Consider the following statements : Roasting is carried out to : 1. Convert sulphide into oxide 2. Melt the ore 3. Remove moisture, water of hydration and expel organic matter 4. Remove sulphur and arsenic in the form of volatile oxides Out of these statements :

Consider the following statements . Roasting is carried out to : (i) convert sulphide to oxide and sulphate. (ii) to remove impurities of CuS and FeS present in the ore of tin stone (SnO_(2)) as CuSO_(4) and FeSO_(4) . (iii) melt the ore. (iv) remove arsenic and sulphur impurities. of these statements.

Roasting is carried out in case of:

Though tin stone is oxide of tine, yet roasting is carried out for this ore. Why ?

Roasting is carried out in extraction of metal in how many ores/minerals? Chalcopyrite, magnetite, Cassiterite containing impurity of pyrites of Fe and Cu, Galena, Zinc blende, Siderite,

In which of the following roasting is carried out ?

The process of calcination and roasting is carried out in reverberatory furnace.

When roasting is carried out: (P) sulphde ore sare converted into oxide and suphate (Q) Remove water of hydration (R ) Melt the ore (S) Remove arsenic and sulphur impurities

NARAYNA-METTALURGY-MULTIPLE ANSWER QUESTOINS
  1. The metals which cannot be obtained by electrolysis of aqueous solutio...

    Text Solution

    |

  2. Which of the following are methods of concentration of minerals

    Text Solution

    |

  3. Roasting is carried out to :

    Text Solution

    |

  4. The correct statement (s) is/are

    Text Solution

    |

  5. Following reaction(s) is/are involved in thermite process :

    Text Solution

    |

  6. Why lime stone is added in the extraction of lead from galena?

    Text Solution

    |

  7. Amphoteric nature of aluminum is employed in which of the following pr...

    Text Solution

    |

  8. The major role of fluorpar (CaF2 ) which added in small quantities in ...

    Text Solution

    |

  9. Which of the following statement is/are not correct?

    Text Solution

    |

  10. Bessemerisation is carried out for

    Text Solution

    |

  11. Which of the following statement is/are correct with the extraction of...

    Text Solution

    |

  12. In the extraction of Ag and Au using a KCN solution, cyanide ions reac...

    Text Solution

    |

  13. Which of the following are correctly matched?

    Text Solution

    |

  14. Which of the following statements are correct ?

    Text Solution

    |

  15. Which of the following statement is/are correct?

    Text Solution

    |

  16. Find out the incorrect statement among the following.

    Text Solution

    |

  17. Which of the following are the advantages of using oxygen in place of ...

    Text Solution

    |

  18. In the extraction of chlorine from brine

    Text Solution

    |

  19. Which of the following is/are correctly matched?

    Text Solution

    |

  20. In which of the following pair(s) the minerals are converted in to met...

    Text Solution

    |