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In the reaction 3Br(2)+6CO(3)^(2-)+3H(...

In the reaction
`3Br_(2)+6CO_(3)^(2-)+3H_(2)Orarr5Br^(ө)+BrO_(3)^(ө)+6HCO_(3)^(ө)`

A

Bromine is oxidised and carbonate is reduced

B

Bromine is reduced and carbonate is oxidised

C

Bromine is neither reduced nor oxidised

D

Bromine is reduced as well oxidised

Text Solution

Verified by Experts

The correct Answer is:
D
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For the reaction 5Br^(-)(aq)+BrO_(3)^(-)(aq)+6H^(+)(aq)rarr 3Br_(2)(aq)+3H_(2)O(l) the reate expression was found to be -(d[BrO^(3-)])/(dt)=k[Br^(-)][H^(+)]^(2)[BrO_(3)^(-)] Which of the following statements is /are correct? I. Doubling the intial concentration of all the reactants will increase the reaction rate by a factor of 8. II. Unit of rate constant of the reaction in a buffer solution is "min"^(-1) III. Doubling the concentration of all the reactants at the same time will increase the reaction rate by a factor of 16 IV. rate of conversion of BrO_(3)^(-) and rate of disappearance of Br^(-) are the same

Assertion :- Bromide ion is serving as a reducing agent in the reaction 2MnO_(4)^(-)(aq.)+Br^(-)(aq.)+H_(2)Orarr2MnO_(2)(aq.)+BrO_(3)^(-)(aq.)+2OH^(-)(aq.) Reason :- Oxidation number of Br increases from -1 to +5

AAKASH INSTITUTE ENGLISH-REDOX REACTIONS-ASSIGNMENT SECTION - A
  1. Given that the oxidation number of sulphur is -2, the equivalent weigh...

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  2. In a reaction between zinc and Iodine, zinc iodide is formed. Which is...

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  3. In the reaction 3Br(2)+6CO(3)^(2-)+3H(2)Orarr5Br^(ө)+BrO(3)^(ө)+6HCO...

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  4. In which reaction, there is change in oxidation number of N atom?

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  5. When zinc granule is dipped into copper sulphate solution, copper is p...

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  6. Which of the following reactions involve oxidation and reduction?

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  7. Which of the following involves the reduction of copper?

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  8. Which one of the following is the correct match?

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  9. The oxidation number of sulphur in H(2)S(2)O(8) is:

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  10. In which of the following compounds iron has lowest oxidation number?

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  11. Phosphorus has the oxidation state of +3 in

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  12. The brown ring complex compound is formulated as [Fe(H(2)O)(5)NO]SO(4)...

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  13. Oxidation number of Cr in CrO(5) is

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  14. In which of the following compounds , the oxidation number of iodine i...

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  15. Which reaction involves neither oxidation nor reduction?

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  16. In a chemical reaction, K(2)Cr(2)O(7)+xH(2)SO(4)+ySO(2) to K(2)SO(4)+ ...

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  17. What is the oxidation state of sodium in sodium amalgam (Na//Hg)?

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  18. Which of the following will not be oxidised by O(3) ?

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  19. In alkaline medium , KMnO(4) reacts as follows 2KMnO(4)+2KOH rarr 2K...

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  20. The equivalent weight of FeS(2) in the following reaction is FeS(2)+O(...

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