Home
Class 11
CHEMISTRY
During the oxidation of arsenite to arse...

During the oxidation of arsenite to arsenate ion in alkaline medium, the number of moles of hydroxide ions involved per mole of arsenite ion are

A

`2`

B

`3`

C

`2//3`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
`overset((3+))(As)overset((3+))(O_(3)) rarr overset((+5))(As)overset((3-))(O_(4))`
In the presence of oxidizing agent `(KMnO_(4))`
`2` moles of `OH^(-)` is produced in basic medium
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    A2Z|Exercise Type Of Redox Reaction And Equivalent Weight|42 Videos

  • REDOX REACTIONS

    A2Z|Exercise Section B - Assertion Reasoning|25 Videos

  • REDOX REACTIONS

    A2Z|Exercise Balancing Of The Equation|28 Videos

  • P BLOCK ELEMENTS ( Group 13 -14)

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • S BLOCK ELEMENTS ( GROUP 13 - 14)

    A2Z|Exercise Section D - Chapter End Test|29 Videos

Similar Questions

Explore conceptually related problems

The conjugate base of hydroxide ion is

Dichromate ions in alkaline medium exist as

During the oxidation of Mn^(2+) to MnO_(4)^(-1) by PbO_(2) in acidic medium, the number of moles of acid consumed per mole of Mn^(2+) ion is

The number of mole of oxalate ions oxidised by one mole of MnO_(4)^(-) ion is:

The number of mole of oxalate ions oxidised by one mole of MnO_(4)^(-) is :

The number of moles of ions present in one mole of unit cells of NaCl

The oxidation number of nitrogen in nitride ion is

The number of Fe^(2+) ion oxidised by one mole of MnO_(4)^(-) ions is:

In alkaline medium, KMnO_4 oxidises iodide ion to

A2Z-REDOX REACTIONS-Stoichiometry In Redox Reactions
  1. In alkaline medium, ClO(2) oxidises H(2)O(2) "to" O(2) and is itself r...

    Text Solution

    |

  2. If equal volumes of 0.1 M KMnO(4) and 0.1 M K(2)Cr(2)O(7) solutions ar...

    Text Solution

    |

  3. If 10g of V(2)O(5) is dissolved in acid and is reduced to V^(2+) by zi...

    Text Solution

    |

  4. 0.45 g of acid (mol. Wt.=90) was exactly neutralized by 20 ml of 0.5(M...

    Text Solution

    |

  5. During the oxidation of arsenite to arsenate ion in alkaline medium, t...

    Text Solution

    |

  6. KMnO(4) (purple) is reduced to K(2)MnO(4) (green) by SO(3)^(2-) in bas...

    Text Solution

    |

  7. In an experiment 50ml of 0.1(M) solution of a salt is reacted with 25m...

    Text Solution

    |

  8. How many litres of Cl(2) at STP will be liberated by the oxidation of ...

    Text Solution

    |

  9. When the ion Cr(2)O(7)^(2-) acts as an oxidant in acidic aqueous solut...

    Text Solution

    |

  10. MnO(4)^(2-) (1 mole) in neutral aqueous medium is disproportionate to

    Text Solution

    |

  11. What volume of 3 molar HNO(3) is needed to oxidise 8 g of Fe^(3+), HNO...

    Text Solution

    |

  12. The number of moles of KMnO(4) that will be needed to react with one m...

    Text Solution

    |

  13. How many litres of Cl(2) at STP will be liberated by the oxidation of ...

    Text Solution

    |

  14. HNO(3) oxidies NH(4)^(+) ions to nitrogen and itself gets reduced to N...

    Text Solution

    |

  15. What volume (in ml) at STP of SO(2) gas is oxidized by 100 ml of 0.1 (...

    Text Solution

    |

  16. What mass of N(2)H(4) can be oxidised to N(2) by 24 g of K(2)CrO(4) wh...

    Text Solution

    |

  17. The number of mole of oxalate ions oxidised by one mole of MnO(4)^(-) ...

    Text Solution

    |

  18. Starch iodide paper is used to test for the presence of

    Text Solution

    |

  19. What weight of HNO(3) is needed to convert 5g of iodine into iodic aci...

    Text Solution

    |

  20. The molar ration of Fe^(++) to Fe^(+++) in a mixture of FeSO(4) and Fe...

    Text Solution

    |