Home
Class 10
CHEMISTRY
(a) In the electrorefining of impure cop...

(a) In the electrorefining of impure copper metal, what are used as cathode and anode ?
(b) Show the formation of `MgCl_(2)` from magnesium and chlorine atoms.

Text Solution

Verified by Experts

(a) A plate of impure copper is used as anode while that of pure copper as cathode.
(b)
Promotional Banner

Topper's Solved these Questions

  • METALS AND NON-METALS

    DINESH PUBLICATION|Exercise Long Answer Questions|23 Videos

  • METALS AND NON-METALS

    DINESH PUBLICATION|Exercise HOTS|7 Videos

  • METALS AND NON-METALS

    DINESH PUBLICATION|Exercise Very Short Answer Questions|67 Videos

  • CHEMICAL REACTIONS AND EQUATIONS

    DINESH PUBLICATION|Exercise Multiple Choice Questions|18 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS

    DINESH PUBLICATION|Exercise PBQs|28 Videos

Similar Questions

Explore conceptually related problems

(a). Write down the electronic configuration of (i) Sodium atom, and (ii) Chlorine atom. (b). How many electrons are there in te outermost shell of (i) a sodium atom, and (ii) a chlorine atom? (c). Show the formation of NaCl from sodiuum and chlorine atoms by the transfer of electron(s). (d). Why has sodium chloride a high melting point? (e) Name the anode and the cathode used in the electrolytic refining of impure copper metal.

(a). Write down the electron arrangement in (i) a magnesium atom, and (ii) a chlorine atom. (b). How many electrons are there in the valence shell of (i) a magnesium atom, and (ii) a chlorine atom? (c). Show the formation of magnesium chloride from magnesium and chlorine by the transfer of electrons. (d) State whetehr magnesium chloride will conduct electricity or not. give reason for your answer. (e). Why are covalent compounds generally poor conductors of electricity?

(a) Give the electron configuration of magnesium and chlorine. (b) Write the electron-dot structures of magnesium and chlorine atoms. (c ) Describe the formation of magnesium chloride from magnesium and chloride formed ? (e) Why do such compounds have high melting points ?

During extraction of metals, electrolytic refining is used to obtain pure metals. (a) Which material will be used as anode and cathode .for refining of silver metal by this process?(b) Suggest a suitable electrolyte also. (c) In this electrolytic cell, where do we get pure silver after passing electric current?

Assertion : In electrolytic refining of metal, impure metal is made cathode while a strip of pure metal is used as anode. Reason : The pure metal gets deposited at anode as anode mud.

Read the following and answer any four questions During extraction of metals, electrolytic refining is used to obtain pure metals. During the process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. The solution of the metal salt is used as an electrolyte. On passing the current through the electrolyte, the pure metal from the anode dissolves from the electrolyte. An equivalent of pure metal from the electrolyte is deposited on the cathode. In electrolytic refining of copper, impure copper act as_________and pure copper as_________:

During extraction of metals, electrolytic refining is used to obtain pure metals. During the process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. The solution of the metal salt is used as an electrolyte. On passing the current through the electrolyte, the pure metal from the anode dissolves from the electrolyte. An equivalent of pure metal from the electrolyte is deposited on the cathode. In electrolytic refining of copper, ______ act as impure copper.

DINESH PUBLICATION-METALS AND NON-METALS-Short Answer Questions
  1. Give reason for the following (i) Iron grills are frequently painte...

    Text Solution

    |

  2. In one method of rust prevention, the iron is not coated with anything...

    Text Solution

    |

  3. Compound X and aluminium are used to join railway tracks. (a) Idemjfy ...

    Text Solution

    |

  4. An ore on treatment with dilute hydrochloric acid produces brisk effer...

    Text Solution

    |

  5. State the property utilized in the following : (i) Graphite in maki...

    Text Solution

    |

  6. (i) Carbonate and sulphide ores are usually converted into oxides duri...

    Text Solution

    |

  7. The reaction of metal 'X' with Fe(2)O(3) is highly exothermic and is u...

    Text Solution

    |

  8. Aluminium oxide and zinc oxide react with both acids are bases to prod...

    Text Solution

    |

  9. Describe an activity to show that metals are good conductors of electr...

    Text Solution

    |

  10. (a) In the electrorefining of impure copper metal, what are used as ca...

    Text Solution

    |

  11. (a) What is an alloy ? How is it prepared ? Give two examples of alloy...

    Text Solution

    |

  12. Write one example each of the following metals : (a) Most malleable...

    Text Solution

    |

  13. A metal 'P' when exposed to moist air for longer period of times, lose...

    Text Solution

    |

  14. Name the constituents elements of the alloys (i) Brass (ii) Bronze (ii...

    Text Solution

    |

  15. Hydrogen gas is not evolved when most metals react with nitric acid. S...

    Text Solution

    |

  16. (a) Why are metals not generally found in their free state ? (b) If...

    Text Solution

    |

  17. Write balanced chemical equation for the reactions taking place when ...

    Text Solution

    |

  18. An element 'X' burns in oxygen to form an electrovalent compound XO. S...

    Text Solution

    |

  19. A metal E is stored under kerosene. When a small piece of it is left o...

    Text Solution

    |

  20. Write the names and symbols of two most reactive metals. Explain by dr...

    Text Solution

    |