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In the conversion fo Br2 to BrO3^(-) , ...

In the conversion fo ` Br_2` to `BrO_3^(-)` , the oxidation state 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
The balanced equation is
`2MnO_(4)^(2-)+5C_(2)O_(4)^(2-)+16H^(+) to 2Mn^(+)+10CO_(2) +8H_(2)O`
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NARAYNA-REDOX REACTION-Exercise -3
  1. Which of the following molecules can act as an oxidating as well as a ...

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  2. Which of the following substances acts as an oxidising as well as a re...

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  3. In the conversion fo Br2 to BrO3^(-) , the oxidation state of Br chan...

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  4. The oxidation sates of iodine in HIO(4), H(3)IO(5) and H(5)IO(6) are r...

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  5. Oxidation state of oxygen in F2O is

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  6. When sulphur dioxide is passed in an acidified K2Cr2O7 solution,the ox...

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  7. Oxidation number if iodine in IO(3)^(-), IO(4)^(-),KI and I(2) respect...

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  8. Oxidation state of P in H(4)P(2)O(5), H(4)P(2)O(6), H(4)P(2)O(7) are r...

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  9. Which of the following have been arranged in the decreasing order of o...

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  10. The highest oxidation state of Mn is shown by

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  11. Chlorine is in +3 oxidation state in

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  12. How many moles of iodine are liberated when one mol of potassium dichr...

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  13. For the redox reaction, MnO(4)^(-) + C(2)O(4)^(2-) + H^(+) rarr Mn^(...

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  14. An oxidation process involves

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  15. Which of the following is the most powerful oxidising agent?

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  16. Which of the following reaction involves oxidation reduction?

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  17. In the reaction SO(2)+2H(2)Srarr3S+2H(2)O the substance oxidised i...

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  18. The value of n in : MnO(4)^(-)+8H^(+)+n erarr Mn^(2+)+4H(2)O is

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  19. Which can act as an oxidising as well as a reducing agent ?

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  20. Which change requires an oxidising agent?

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