Home
Class 12
CHEMISTRY
Aluminothermy used for on the spot weldi...

Aluminothermy used for on the spot welding of large iron structures is based upon the fact that

A

As compared to iron, aluminium has greater affinity for oxygen

B

As compared to aluminium, iron has greater affinity for oxygen

C

Reaction between aluminium and oxygen is endothermic

D

Reaction between iron oxide and aluminium is exothermic

Text Solution

Verified by Experts

The correct Answer is:
A, D
Promotional Banner

Topper's Solved these Questions

  • METALLURGY

    VK JAISWAL|Exercise MATCH THE COLUMN|16 Videos

  • METALLURGY

    VK JAISWAL|Exercise ASSERTION-REASON TYPE QUESTIONS|30 Videos

  • METALLURGY

    VK JAISWAL|Exercise Level 3 (Passive 3)|6 Videos

  • ENVIRONMENTAL CHEMISTRY

    VK JAISWAL|Exercise ASSERTION-REASON TYPE QUESTIONS|14 Videos

  • p-BLOCK ELEMENTS

    VK JAISWAL|Exercise SUBJECTIVE PROBLEMS|36 Videos

Similar Questions

Explore conceptually related problems

Primary structure of protein is based upon the

An electric iron is based upon the principle of

Borax bead test is used to identify the metaborates of transition metals. It is based on the fact that

Which of the following is correct for DNA fingerprinting ? I. It is used to identify a person on the basis of person DNA specificity. II. It is based upon the fact that DNA constitution of an individual carries some specific sequences of nucleotides. III. It is used to produce transgenic organisms. IV. It starts with one gene sized piece of RNA.

VK JAISWAL-METALLURGY-One OR MORE ANSWERS IS/ ARE CORRECT
  1. Which of the following are true for electrolytic extraction of alumini...

    Text Solution

    |

  2. Select correct statement regrading silver extraction//purification pro...

    Text Solution

    |

  3. Aluminothermy used for on the spot welding of large iron structures is...

    Text Solution

    |

  4. Highly electropositive metals can not be extracted by carbon reduction...

    Text Solution

    |

  5. Which of the following reaction in the blast furnace is / are endother...

    Text Solution

    |

  6. The funace lining in steel manufacture consists of :

    Text Solution

    |

  7. Pick up the correct statement(s) :

    Text Solution

    |

  8. Which of the following metal (s) is /are commercially extracted by sel...

    Text Solution

    |

  9. Which of the following process makes the ore porous ?

    Text Solution

    |

  10. Which of the following ores is / are oxide ore (s) ?

    Text Solution

    |

  11. Roasting of copper pyrites is done :

    Text Solution

    |

  12. Which of the following is a correct statement ?

    Text Solution

    |

  13. In which of the following pairs, both the minerals are oxides ?

    Text Solution

    |

  14. Which of the following mineral does not contain sodium ?

    Text Solution

    |

  15. Which of the following pair consists of ore of the same metal ?

    Text Solution

    |

  16. The process (es) by which lighter earthy particles are freed from the ...

    Text Solution

    |

  17. Roasting is carried out to :

    Text Solution

    |

  18. The chemical treatment of the ore for concentration is done in the cas...

    Text Solution

    |

  19. Froth floatation :

    Text Solution

    |

  20. Which of the following reaction(s) occurs during calcination?

    Text Solution

    |