Home
Class 12
CHEMISTRY
When roasting is carried out: (P) sulp...

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

A

(i), (ii) and (iii) are correct

B

(i) and (iv) are correct

C

(i), (ii) and (iv) are correct

D

(ii), (iii) and (iv) are correct

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • METALLURGY

    MOTION|Exercise EXERCISE 2 (LEVEL - II)|37 Videos

  • METALLURGY

    MOTION|Exercise EXERCISE 3|30 Videos

  • METALLURGY

    MOTION|Exercise EXERCISE 1|50 Videos

  • LIQUID SOLUTION

    MOTION|Exercise EXERCISE-4 (Level-II) PREVIOUS YEAR JEE ADVANCED|19 Videos

  • MOLE CONCEPT

    MOTION|Exercise EXERCISE - 4 LEVEL - II|13 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.

Heating of ore in presence of air to remove sulphure impurities is called

MOTION-METALLURGY-EXERCISE 2 (LEVEL - I)
  1. Chemical leaching is useful in the concentration of:

    Text Solution

    |

  2. The element which could be extracted by electrolytic reduction of its ...

    Text Solution

    |

  3. When roasting is carried out: (P) sulphde ore sare converted into ox...

    Text Solution

    |

  4. The form of iron obtained from blast furnace is:

    Text Solution

    |

  5. Which of the following is not an ore:

    Text Solution

    |

  6. Which one of the following statements is not correct

    Text Solution

    |

  7. In the extraction of nickel of Mond's process, the metal is obtained b...

    Text Solution

    |

  8. B4C (boron carbide) is used except:

    Text Solution

    |

  9. Froth floatation process is based on

    Text Solution

    |

  10. When ZnS and PbS minearls are present together, then NaCN is added to ...

    Text Solution

    |

  11. When copper is purified by electrorefining process, noble metals like ...

    Text Solution

    |

  12. Formation of volatile Ni(CO)(4) and then its subsquent decomposition i...

    Text Solution

    |

  13. Match column–I (process) with column–II (electrolyte) : Column–I (p...

    Text Solution

    |

  14. (I) FeCr2 O4 + NaOH + air to (A) + Fe2O3 (II) (A) + (B) to NaCr2O7 ...

    Text Solution

    |

  15. (I) FeCr2 O4 + NaOH + air to (A) + Fe2O3 (II) (A) + (B) to NaCr2O7 ...

    Text Solution

    |

  16. (I) FeCr2 O4 + NaOH + air to (A) + Fe2O3 (II) (A) + (B) to NaCr2O7 ...

    Text Solution

    |

  17. (I) FeCr2 O4 + NaOH + air to (A) + Fe2O3 (II) (A) + (B) to NaCr2O7 ...

    Text Solution

    |

  18. In Froth floatation process for, pine oil functions oil functions as:

    Text Solution

    |

  19. Collectors are the subsances which help in attachment of an ore partic...

    Text Solution

    |

  20. Zone refinning is based on the principle of:

    Text Solution

    |