Home
Class 12
CHEMISTRY
Consider following sets : Blue colo...

Consider following sets `:`

Blue colour solution changes to colourless ( or fades ) in

A

`I,II,III`

B

`I,II`

C

`II,III`

D

`I,III`

Text Solution

Verified by Experts

The correct Answer is:
4
Since`Zn,Fe` is above in Electrochemical gases ( better reducing agent ) thus it replaces Cu from solution.
`Zn+CuSO_(4)rarrZnSO_(4)+Cu`
`Fe+CuSO_(4)rarrFeSO_(4)+Cu`
Thus `(1)` and `(3)` solution becomes colour less.
Promotional Banner

Topper's Solved these Questions

  • DPP

    RESONANCE|Exercise QUESTIONS|223 Videos

  • ELECTROCHEMISRY

    RESONANCE|Exercise Advanced Level Problems|88 Videos

Similar Questions

Explore conceptually related problems

Consider the following statements: (a) Both acids and bases change colour of all indicators. (b) If an indicator gives a colour change with an acid, it does not give a change with a base. (c) If an indicator changes colour with a base, it does not change colour with an acid. (d) Change of colour in an acid and a base depends on the type of the indicator. Which of these statements are correct?

When zinc granules are added to copper sulphate solution, the blue coloured solution-turns colourless. Give reason

The blue coloured solution is diamagnetic or paramagnetic?

Sodium gives blue colour in NH_(3) solution. This blue colour is due to

RESONANCE-ELECTRO CHEMISTRY-PHYSICAL CHEMITRY (ELECTROCHEMISTRY)
  1. E^(@) for F(2)+2e^(-) hArr 2F^(-) is 2.8V,E^(@) for (1)/(2)F+e^(-)=F^(...

    Text Solution

    |

  2. Given that E(Fe^(2+)//Fe)^(.)=-0.44V,E(Fe^(3+)//Fe^(2+))^(@)=0.77V if...

    Text Solution

    |

  3. Consider following sets : Blue colour solution changes to colourl...

    Text Solution

    |

  4. E(Al^(3+)//Al)^(@)=-1.66 V and K(SP) of Al(OH)(3)=1.0xx10^(-33). Reduc...

    Text Solution

    |

  5. The E(Call)^(@)=1.18V for Zn(s)||Zn^(+2)(1M)||Cu^(+2)(1M)|Cu(s). The v...

    Text Solution

    |

  6. You are given the followin cell at 298 K, Zn|(Zn^(+ +) .((aq.))),(0.01...

    Text Solution

    |

  7. What must be concentration of Ag^(+) in an aqueous solution containin...

    Text Solution

    |

  8. Consider the cell potentials E(Mg^(2+)|Mg)^(0)=-2.37V and E(Fe^(3+)|Fe...

    Text Solution

    |

  9. Use the standard potentials of the couples Au^(+)//Au(+1.69V),Au^(3+)/...

    Text Solution

    |

  10. Calculate molar conductivity of HCOOH at infinite dilution, if equival...

    Text Solution

    |

  11. Salts of A (atomic weight 7), B (atomic weight 27) and C (atomic weigh...

    Text Solution

    |

  12. Given that E(Fe^(3+)|Fe)^(0) and E(Fe^(2+)|Fe)^(0) are -36V and -0.43...

    Text Solution

    |

  13. The standard oxidation potential for Mn^(3+) ion acid solution are Mn^...

    Text Solution

    |

  14. Fe is reacted with 1.0M HCI.E^(@) for Fe//Fe^(2+) = +0.34 volt. The co...

    Text Solution

    |

  15. The following facts are availabel : 2A^(c-)+B(2) rarr 2B^(-)+A(2), ...

    Text Solution

    |

  16. E(H^(+)//H(2))^(0)=0.00V, then E(D^(+)//D(2))^(0) at 25^(@)C will be

    Text Solution

    |

  17. When an electric current is passed through acidified water, 112ml of H...

    Text Solution

    |

  18. Which of the following graphs are correct for strgon electrolyte AD an...

    Text Solution

    |

  19. Number of electrons lost during electrolysis of 0.14g of N^(-3) is -(N...

    Text Solution

    |

  20. Aqueous solution of NaCl containing a small amount of MeOH ( methyl o...

    Text Solution

    |