Home
Class 12
CHEMISTRY
Prudict the mode of occurrence of the fo...

Prudict the mode of occurrence of the following metals. (i) Highly reactive (eg, sodium) (ii) Moderately reactive (such as iron) (iii) Noble metal. (Au, Pt)

Text Solution

Verified by Experts

(i) Highly reactive metals exist in combined state generally as their chlorides, sulphates. or carbonates. (ii) Moderately reactive metals generally occur as their oxides .. iii) Noble mietals occur in free state/ native state
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    V PUBLICATION|Exercise QUESTION BANK|154 Videos
  • HALOALKANES AND HALOARENES

    V PUBLICATION|Exercise QUESTION BANK|144 Videos

Similar Questions

Explore conceptually related problems

Why is potassium a highly reactive metal, whereas gold is a noble metal?

Describe two important uses of each of the following. (i) Caustic soda (ii) Sodium carbonate (iii) Quick lime.

Which is the highly reactive non metal?

a) Which type of metal among the given metals is highly reactive with cold water? (Mg, Na, Fe) b) Which is the gas produced by the above reaction?

Which among the following metals is stored in kerosene? (a) Sodium (b) Iron (c ) Tangsten (d) Chromium Why is it stored in kerosene?

Outline the principles of refining of metals by the following methods. i, Zone refining ii. Electrolytic refining iii. Vapour pháse refining

The correct match among the following is (a) Lithium, Sodium, Potassium (i) Alkaline earth metals (b) Beryllium, Magnesium, Calcium (ii) Semi-metals (c) Oxygen, Sulphur, Selenium (iii) Alkali metals (d) Silicon, Germanium, Arsenic (iv) Chalcogens

V PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-QUESTION BANK
  1. A sample of galena (PbS) is contaminated with zinc blende (ZnS). Name ...

    Text Solution

    |

  2. Metal sulphides occur mainly in rocksand metal halides in lakes and se...

    Text Solution

    |

  3. Prudict the mode of occurrence of the following metals. (i) Highly rea...

    Text Solution

    |

  4. Which of the following ores can be concentrated by magnetic separation...

    Text Solution

    |

  5. Why is the reduction of a' metal'oxide easier if the metal formed is i...

    Text Solution

    |

  6. What is Ellingham diagram?

    Text Solution

    |

  7. Name the constituents of the following-alloys? (i) Bronze,ii)stainless...

    Text Solution

    |

  8. Name the electrolytic process used for the extraction of aluminium? Wh...

    Text Solution

    |

  9. Give the different steps involved in metallurgy

    Text Solution

    |

  10. Prudict the mode of occurrence of the following metals. (i) Highly rea...

    Text Solution

    |

  11. Giving appropriate examples (at least three) explain how the reactivit...

    Text Solution

    |

  12. Explain the terms-(1) Quenching (2) Annealing (3) Tempering

    Text Solution

    |

  13. Name three metals.which occur in nature miainly as oxide ores. Name on...

    Text Solution

    |

  14. What chemical principle is involved in choosing a reducing agent for g...

    Text Solution

    |

  15. Describe the principle of extraction of each of the following (b) Zn ...

    Text Solution

    |

  16. Discuss some of the factors, which need consideration before deciding ...

    Text Solution

    |

  17. Which of the folllowing benefaction processes is used for the mineral ...

    Text Solution

    |

  18. The impurities associated with the ore after mining are collectively c...

    Text Solution

    |

  19. In which of the folllowing minerals, aluminium is not present?

    Text Solution

    |

  20. The process in which metal oxide is reduced to metal by Al is called

    Text Solution

    |