Home
Class 12
CHEMISTRY
Why blue colour of CuSO(4) solution gets...

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`

Text Solution

Verified by Experts

Here reduction potential of `Cu gt Zn.` So, `Cu^(+2)` (aq) ions reduced to Cu(s)
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section A) (Objective type Questions (one option is correct))|40 Videos

  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section B) (Objective type Questions (one option is correct))|32 Videos

  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - D|10 Videos

  • PRINCIPLES OF QUALITATIVE ANALYSIS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION H)|9 Videos

  • SOLUTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGMENT (SECTION-J) AAKASH CHALLENGERS QUESTIONS|10 Videos

Similar Questions

Explore conceptually related problems

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

For the given cell arrangement identify incorrect statement given E^@_(Cu^(2+)//Cu) = 0.34V & E^@_(Zn^(2+)//Zn) = -0.76V

Can a solution of 1 M ZnSO_(4) be stored in a vessel made of copper ? Given that E_(Zn^(+2)//Zn)^(@) =-0.76V and E_(Cu^(+2)//Cu)^(@)=0.34 V

E_(Cu^(2+)//Cu)^(@)=0.34V E_(Cu^(+)//Cu)^(@)=0.522V E_(Cu^(2+)//Cu^(+))^(@)=

E_(Cu^(2+)//Cu)^(@)=0.34V E_(Cu^(+)//Cu)^(@)=0.522V E_(Cu^(2+)//Cu^(+))^(@)=

E_(Cu^(2+)//Cu)^(@) =0.43V E_(Cu^(+)//Cu)^(@)=0.55V E_(Cu^(2+)//Cu^(+))^(@) =

A cell is constructed by dipping a zinc rod in 0.1 M zinc nitrate solution and a lead rod in 0.2 M lead nitrate solution. E_(Pb^(2+)//Pb)^(Theta) = -0.13 V and E_(Zn^(2+)//Zn)^(Theta) = -0.76V (i) Write the spontaneous cell reaction. (ii) Calculate standard emf and emf of the cell.

Which of the following statements is correct? If E_(Cu^(2+)|Cu)^(@)=0.34V, E_(Sn^(2+)|Sn)^(@)=-0.136V,E_(H^+|H_2)^(@)=-0.0V

What does the negative sign in the expression E_(Zn^(2+)//Zn)^(@)=-0.76V mean?

If a small Cu rod is placed in an aqueous solution of ferrous salt, then which of the following will be observed? ( E_((Cu^(2+)) /(Cu))^0 = -0.34 V , E_((Fe^(2+)) /(Fe))^0 = -0.44 V )

AAKASH INSTITUTE ENGLISH-REDOX REACTIONS-Try Yourself
  1. In the balanced equation MnO(4)^(-)+H^(+)+C(2)O(4)^(2-)rarr Mn^(2+)+...

    Text Solution

    |

  2. Balance the following reaction by ion electrons method ( acidic medium...

    Text Solution

    |

  3. Balance the equation in acidic medium H(2)S + Fe^(3+) to Fe^(3+) + ...

    Text Solution

    |

  4. Balance the equation by lon-electron method Al + NO(3)^(-) to Al(OH...

    Text Solution

    |

  5. Why blue colour of CuSO(4) solution gets discharged when zinc rod is d...

    Text Solution

    |

  6. Can a solution of 1 M ZnSO(4) be stored in a vessel made of copper ? G...

    Text Solution

    |

  7. Write the half reaction for the reaction 2Fe^(+3) + 2I^(-) to 2Fe^(...

    Text Solution

    |

  8. identify oxidation and reduction process for the reaction CH(2) =CH...

    Text Solution

    |

  9. Determine the oxidation number of Cl in HCl, HOCl, HClO(4) " and " ClO...

    Text Solution

    |

  10. What is the oxidation number of the underlined atoms in the following ...

    Text Solution

    |

  11. Identify the oxidant and the reductant respectively in the following r...

    Text Solution

    |

  12. Is this a redox reaction ? BaO(2) + H(2)SO(4) to BaSO(4) + H(2)O(2...

    Text Solution

    |

  13. Write the disproportionation reaction of ClO^(-) to Cl^(-) and ClO(3)...

    Text Solution

    |

  14. Classify the reaction (i) 2NO(2) + 2OH^(-) to NO(2)^(-)+H(2)O (i...

    Text Solution

    |

  15. Balance the equation by lon-electron method (ii) MnO(4)^(-) + H(2)C(...

    Text Solution

    |

  16. Balance the equation, As(2)S(3)+NO(3)^(-) rarr AsO(4)^(3-)+NO+S (in ac...

    Text Solution

    |

  17. Balance the equation in acidic medium H(2)S + Fe^(3+) to Fe^(2+) + ...

    Text Solution

    |

  18. Balance the equation by lon-electron method Al + NO(3)^(-) to Al(OH...

    Text Solution

    |

  19. Why blue colour of CuSO(4) solution gets discharged when zinc rod is d...

    Text Solution

    |

  20. Can a solution of 1 M ZnSO(4) be stored in a vessel made of copper ? G...

    Text Solution

    |