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Which of the following reactions is not ...

Which of the following reactions is not a redox reaction?

A

`H_(2)O_(2)+KOHrarrKHO_(2)+H_(2)O`

B

`Cr_(2)O_(7)^(2-)+2overset(ө)OHrarr2CrO_(4)^(2-)+H_(2)O`

C

`Ca(HCO_(3))_(3)overset(Delta)rarrCaCO_(3)+CO_(2)+H_(2)O`

D

`H_(2)O_(2)rarrH_(2)O+(1)/(2)O_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
(a) Oxidation state of `K is +1` in both reactant and product.
(b), Oxidation state of `Cr(+6)` does not change.
In (c ), oxidation states of `Ca` and `C` and `O` do not change. In (d), the `H_(2)O_(2)` which disproportionates is both oxidising and a reducing agent.
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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 reactions should be balanced in basic medium?

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

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

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

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

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

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

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

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

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

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  12. The oxidation number of Cr is +6 in

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  13. The oxidation number of carbon is zero in

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

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

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

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

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

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

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  20. Which molecule represent by the bold atoms are in their highest oxidat...

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