Home
Class 12
CHEMISTRY
Blue colour of CuSO(4) solution is disch...

Blue colour of `CuSO_(4)` solution is discharge slowly when an iron rod is dipped into it. Why?

A

blue colour of the solution turns red

B

brown layer is deposited on iron rod

C

no change occurs in the colour of the solution

D

none

Text Solution

Verified by Experts

The correct Answer is:
B

Fe being below Cu in electrochemical series and thus liberates Cu from `CuSO_(4)` .
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    NIKITA PUBLICATION|Exercise Questions From Competitive Exam|46 Videos
  • D-AND F-BLOCK ELEMENTS

    NIKITA PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|515 Videos
  • GENERAL PRINCIPLES & PROCESSES OF ISOLATION OF ELEMENTS

    NIKITA PUBLICATION|Exercise Multiple choice questions|117 Videos

Similar Questions

Explore conceptually related problems

Why blue colour of CuSO_(4) solution gets discharged when zinc rod is dipped in it ? Given, E_(Cu^(+2)//Cu)^(@)=0.34 V and E_(Zn^(+2)//Zn)^(@)=-0.76V

Colour of I_2 solution is discharged , when solution of 'X' is added . 'X' is

The blue colour of copper sulphate solution is discharged when a rod of zinc is deppid in it.Explain.

NIKITA PUBLICATION-ELECTROCHEMISTRY -Questions From Competitive Exam
  1. Blue colour of CuSO(4) solution is discharge slowly when an iron rod i...

    Text Solution

    |

  2. A current 0.5 ampere when passed through AgNO(3) solution for 193 sec....

    Text Solution

    |

  3. A factory produces 40 kg of calcium in two hours by electrolysis. How ...

    Text Solution

    |

  4. {:("Electrolyte",^^.^(oo)(Scm^(2)mol^(-1))),(KCl,149.9),(KNO(3),145.0)...

    Text Solution

    |

  5. At certain temperature and infinite dilution , the equivalent conducta...

    Text Solution

    |

  6. A solution of concentration 'C' g equiv/litre has a specific resistanc...

    Text Solution

    |

  7. The solution of CuSO(4) in which copper rod is immersed is diluted to ...

    Text Solution

    |

  8. The standard oxidation potential E^@ for the half cell reaction are ...

    Text Solution

    |

  9. The Gibbs energy for the decomposition of Al(2)O(3) at 500^(@)C is as ...

    Text Solution

    |

  10. The correct order of E(M^(2+)//M)^(@) Values with negative sign for th...

    Text Solution

    |

  11. The concentration of potassium ions inside a biological cell is at lea...

    Text Solution

    |

  12. The concentration of potassium ions inside a biological cell is at lea...

    Text Solution

    |

  13. For the reduction of silver ions with copper metal, the standard cell ...

    Text Solution

    |

  14. An increase in equivalent conductance of a strong electrolyte with dil...

    Text Solution

    |

  15. Which of the following expressions correctly repesents the equivalent ...

    Text Solution

    |

  16. Consider the following relations for emf of a electrochemical cell (...

    Text Solution

    |

  17. The equilibrium constant (K) for the reaction Cu(s)+2Ag^(+) (aq) rar...

    Text Solution

    |

  18. E^(@) for Fe//Fe^(2+) is +0.44 V and E^(@) for Cu//Cu^(2+) is -0.32 V....

    Text Solution

    |

  19. For the electrochemical cell, M|M^(+) ||X^(-)|X, E(M^(+)//M)^(@) = 0.4...

    Text Solution

    |

  20. Match the followings . {:(,"List - I" ,, ,"List- II") , (,(A) "Poten...

    Text Solution

    |

  21. If values of Lambda(0) of NH(4)Cl , NaOH and NaCl are 130 , 127 and 10...

    Text Solution

    |