Home
Class 11
CHEMISTRY
20 ml. solution of 0.1 (M) FesO(4) was c...

20 ml. solution of 0.1 (M) `FesO_(4)` was completely oxidised using a suitable oxidising agent .What is the number of the electrons

Text Solution

Verified by Experts

20Ml of 0.1 (m) `FeSO_(4)=(0.1)/(1000)x20`
`=2xx10^(-3)` mol of `Fe^(2+)`
`Fe2^(+)`is oxidised to `Fe^(3+)` ,leaving I electon.
Hence ,the number of electrons exchanged by `2xx10^(-3)` mol `Fe^(2+)is -2xx10^(-3)xx6.022xx10^(23)`
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    CHHAYA PUBLICATION|Exercise SOLVED WBCHSE SCANNNER|20 Videos

  • REDOX REACTIONS

    CHHAYA PUBLICATION|Exercise SOLVED NCERT EXERCISE|64 Videos

  • REDOX REACTIONS

    CHHAYA PUBLICATION|Exercise PRACTICE SET|4 Videos

  • CLASSIFICATION OF ELEMENTS & PERIODICITY IN PROPERTIES

    CHHAYA PUBLICATION|Exercise PRACTICE SET|12 Videos

  • s-BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTICE SET|16 Videos

Similar Questions

Explore conceptually related problems

V ml solution of Fe^(2+) can be oxidised by 60 ml of KMnO_4 in acidic medium. What will be the volume of K_2Cr_2O_7 required to oxidise V ml of the same Fe^(2+) solution in an acidic medium ? Consider the molarity of KMnO_4 and K_2Cr_2O_7 to be the same.

0.20 g of NaOH is dissolved per litre of a caustic soda solution. If 12.5mL 0.1(N) H_2SO_4 solution is added to 250 mL of that caustic soda solution, then what will be the pH of the mixed solution?

A100 ml solution of 0.1 N HCl was titrated with 0.2 N NaOH solution. The titration was discontinued after adding 30 ml of NaOH solution. The remaining titration was completed by adding 0.25 N KOH solution. The volume of KOH required for completing the titration is

20 mL of a H_(2)O_(2) solution after acidification required 20 mL of N/10 KMn O_(4) solution for complete oxidation. Calculate the percentage and volume strength of H_(2)O_(2) solution.

If 50 ml 0.2 (M) CH_3COOH is mixed with 20 ml 0.2 (M) NaOH solution, then what will be the pH of the mixed solution?

In a solution acidified with HCI, K_(2)Cr_(2)O_(7) oxidises metallic tin (sin) to stannic chloride (SnCI_(4)) . What volume of a decinormal K_(2)Cr_(2)O_(7) solution is required to oxidise 0.1 g of tin ?

100 mL 0.1(M) HCl solution is added to 100mL 0.1(M) Ca(OH)_2 solution. The excess Ca(OH)_2 remaining in the resulting solution is completely neutalised by 100mL H_2SO_4 solution. Calculate the concentration and pH of the H_2SO_4 solution.

0.592 g of calcium oxalate was dissolved in dilute acid and the solution was made up to 250 mL. 25 mL of this solution required 8.375 mL of 0.1 N KMnO_4 solution for complete oxidation. Calculate the percentage of calcium oxalate in calcium oxalate sample.

CHHAYA PUBLICATION-REDOX REACTIONS -QUESTION- ANSWER ZONE FOR BOARD EXAMINATION (VERY SHOT ANSWER TYPE)
  1. Determine the oxidation number of the marked elements in the following...

    Text Solution

    |

  2. Determine the oxidation number of the marked elements in the following...

    Text Solution

    |

  3. Determine th eequivalent masses of Na(2)S(2)O(3).5H(2)O and KBrO(3)in ...

    Text Solution

    |

  4. Determine th eequivalent masses of Na(2)S(2)O(3).5H(2)O and KBrO(3)in ...

    Text Solution

    |

  5. Determine the equlavent weights of the underlined compounds in the fol...

    Text Solution

    |

  6. Determine the equlavent weights of the underlined compounds in the fol...

    Text Solution

    |

  7. Balance the following equation with the help of oxidation number metho...

    Text Solution

    |

  8. Balance the following equation with the help of oxidation number metho...

    Text Solution

    |

  9. In basic medium balance the half-reactions following below: Cr(OH)(3...

    Text Solution

    |

  10. In basic medium balance the half-reactions following below: Cl(2)O(7...

    Text Solution

    |

  11. Balance the following reactions in acidic and alkaline medium : SO(3)^...

    Text Solution

    |

  12. Determine the values of x and y in the following balanced equation: ...

    Text Solution

    |

  13. In the given reaction determine the equivalent weight of of As(2)S(3):...

    Text Solution

    |

  14. Detemine the equivalent mass of Fe (2)O(4) in the given reaction : Fe(...

    Text Solution

    |

  15. An oxidising agent KH(IO(3))(2)in presence of 4.0(N) HCI gives ICI as ...

    Text Solution

    |

  16. Find the oxidation number of carbon in methanal and methanoic acid.

    Text Solution

    |

  17. What will be the change in oxidation number of Mn when MnO(2) is melte...

    Text Solution

    |

  18. What is the rate of equivalent weights of MNO(4)^(-) in acidic ,basic ...

    Text Solution

    |

  19. MnO(4)reacts with A^(x+) to from AO(3)^(-),Mn^(2+)and O(2).One mole of...

    Text Solution

    |

  20. 20 ml. solution of 0.1 (M) FesO(4) was completely oxidised using a sui...

    Text Solution

    |