Home
Class 12
CHEMISTRY
Copper and silver lie below in the elect...

Copper and silver lie below in the electrochemical series and yet they are found in the combined state as sulphides in nature. Comment.

Text Solution

Verified by Experts

Because of high polarising power of Cu and Ag ions, their sulphides are even more stable than the metals,
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

What is wrongly stated about electrochemical series?

From the electrochemical series, Cu can displace Ag from silver nitrate solution Write down the reaction taking place at the cathode

From the electrochemical series, Cu can displace Ag from silver nitrate solution Write down the reaction taking place at the anode

Certain elements are arranged in the order as they appear in the electrochemical series. Answer the question that follows based on this Na>Mg>Al>Zn>Cu>Ag Which of these element is likely to be found in free state in nature?

From the electrochemical series, Cu can displace Ag from silver nitrate solution Write Nernst equation for the above cell reaction

State whether the following sentences are true or false: (a) Metals in the second group are called alkali metals. (b) Alkali metals are not found in free state in nature. (c) Baking soda is chemically sodium hydrogen carbonate. (d) Portland cement is basically silicates and alu minates of calcium.

From the electrochemical series, Cu can displace Ag from silver nitrate solution Represent the cell constructed with silver and copper electrodes

Which is the last element in the series of the actinoids? Write the electronic configuration of this element. Comment on the possible oxidation state of this element.

Seema constructed a series LCR circuit in the labo ratory She found that the voltages across the inductor and capacitor are equal when the circuit is connected to an ac source. State the condition at which the voltage across L and C become equal.

V PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-QUESTION BANK
  1. Give one important ore of aluminium?

    Text Solution

    |

  2. Name the four, most abundant elements in the earth's crust? Arrange.th...

    Text Solution

    |

  3. Copper and silver lie below in the electrochemical series and yet they...

    Text Solution

    |

  4. Name,the method used for refining of (i) Nićkel (ii) Zireonium

    Text Solution

    |

  5. A sample of galena (PbS) is contaminated with zinc blende (ZnS). Name ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  10. What is Ellingham diagram?

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  13. Give the different steps involved in metallurgy

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |