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Which of the following reactions should ...

Which of the following reactions should be balanced in basic medium?

A

`NH_(3)+MnO_(4)^(ө)rarrMnO_(2)+NO_(2)`

B

`Cr(OH)_(2)+I_(2)rarrCr(OH)_(3)+2I^(ө)`

C

`HNO_(3)+Fe^(3+)+NO_(2)`

D

`H_(2)O_(2)+Fe^(3+)rarrO_(2)+Fe^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
A, B
In (a), `MnO_(4)^(ө)rarrMnO_(2)` occurs only in basic medium In (b), `Cr(OH)_(2)rarrCr(OH)_(3)` occurs only in basic medium. `(c )` and `(d)` occur only is acidic medium.
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CENGAGE CHEMISTRY-REDOX REACTIONS-Exercises (Multiple Correct)
  1. Which of the following statements is//are correct?

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  2. Which of the following statements is//are correct?

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  3. Which of the following reactions should be balanced in basic medium?

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  4. Which of the following reactions is not a redox reaction?

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  5. No reaction occurs in which of the following equations?

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  6. Which of the following satements is//are correct?

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  7. Which of the following statements is//are correct?

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  8. Which of the following statements is//are correct? In the reaction x...

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  9. Which of the following statements is//are correct about the following ...

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  10. In the reaction I(2)+C(2)H(5)OH+overset(ө)OHrarrCHI(3)+HCOO^(ө)+H(2)...

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  11. Which of the following statements is//are correct?

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  12. Which of the following statements about the following reaction is//are...

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  13. The oxidation number of Cr is +6 in

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  14. The oxidation number of carbon is zero in

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  15. Which of the following has//have been arranged in order of decreasing...

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  16. The oxidation number of carboxylic carbon atom in CH(3)COOH is

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  17. Which of the following is//are autoredox reactions?

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  18. Which of the following is// disproportionatin reactions?

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  19. For the reaction KO(2)+H(2)O+CO(2)rarrKHCO(3)+O(2), the mechanism of r...

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  20. Which of the following can be used both as an oxidant and a reductant?

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