Home
Class 12
CHEMISTRY
In the conversion of Br(2) to BrO(3)^(-)...

In the conversion of `Br_(2)` to `BrO_(3)^(-)` , the oxidation number of Br changes from

A

zero to + 5

B

`+1` to `+5`

C

zero to `-3`

D

`+2` to `+5`

Text Solution

Verified by Experts

The correct Answer is:
A
`Br_(2)to BrO_(3)^(-)`
Any free (unattached) element with no charge has the oxidation state of zero.
Let the oxidation number of Br in `BrO_(3)^(-)` be x.
Hence `x+3xx (-2)=-1` or, `x-6=-1`
or, `x=+5`.
Promotional Banner

Topper's Solved these Questions

  • KARNATAKA CET 2005

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

  • KARNATAKA CET 2007

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

Similar Questions

Explore conceptually related problems

Br^(-) can be converted to Br_(2) by using

Arrange the halogens F_(2), Cl_(2), Br_(2), I_(2) , in order of their increasing reactivity with alkanes.

Addition of Br_2 to trans-2-butene would give a product which is

In the reaction BrO_(3)^(-)(aq)+ 5Br^(-)+6H^(+) rarr 3Br_(2)+3H_(2)O the rate of appearance of bromine is related to the rate of disappearance of bromide ions as :

Balance the following redox reaction by using oxidation number method. MnO_(2)+Br^(-)toMn^(+2)+Br_(2)+H_(2)O (acid medium)

Iodine and bromine are added to a solution containing I^(-) and Br^(-) ions. What reaction would occur if the concentration of each species was 1 M ? [E^(@)(I_(2), I^(-))= 0.54 V, E^(@)(Br_(2), Br^(+))=1.08 V]

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2006-CHEMISTRY
  1. The atomic number of Ni and Cu are 28 and 29 respectively. The electro...

    Text Solution

    |

  2. In the following, the element with the highest ionisation energy is

    Text Solution

    |

  3. In the conversion of Br(2) to BrO(3)^(-) , the oxidation number of Br ...

    Text Solution

    |

  4. Among the alkali metals cesium is the most reactive because

    Text Solution

    |

  5. Which of the following represents the Lewis structure of N(2) molecule...

    Text Solution

    |

  6. Hydrogen bond is strongest in

    Text Solution

    |

  7. The decomposition of a certain mass of CaCO(3) gave 11.2 dm^(3) of CO(...

    Text Solution

    |

  8. The density of a gas is 1.964 g dm^(-3) at 273 K and 76 cm Hg. The gas...

    Text Solution

    |

  9. 0.06 mole og KNO(3) solid is added to 100 cm^(3) of water at 298 K. Th...

    Text Solution

    |

  10. 4 moles each of SO(2) and O(2) gases are allowed to react to form SO(3...

    Text Solution

    |

  11. An example for autocatalysis is

    Text Solution

    |

  12. During the fusion of organic compound with sodium metal, nitrogen pre...

    Text Solution

    |

  13. Identify the product Y in the following reaction sequence.

    Text Solution

    |

  14. The reaction C(2)H(5)ONa+C(2)H(5)I to C(2)H(5)OC(2)H(5)+NaI is known a...

    Text Solution

    |

  15. DeltaG^@ vs T plot in the Ellingham's diagram slopes downward for the ...

    Text Solution

    |

  16. Which of the following taking place in the Blast fuenace is endothermi...

    Text Solution

    |

  17. Liquor ammonia bottles are opened only after cooling. This is beacause

    Text Solution

    |

  18. The formation of O(2)""^(+)[PtF(6)]^(-) is the basis for the formation...

    Text Solution

    |

  19. The highest magnetic moment is shown by the transition metal ion with ...

    Text Solution

    |

  20. A transition metal ion exists in its highest oxidation state. It is ex...

    Text Solution

    |